Home / 1,289,441,659.80-1,934,162,489.70-552,386,136.90

Finding the Fourth Proportional to 1,289,441,659.80, 1,934,162,489.70 and 552,386,136.90

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Solution

The fourth proportional to 1,289,441,659.80, 1,934,162,489.70 and 552,386,136.90 is: 828,579,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,441,659.80 : 1,934,162,489.70 = 552,386,136.90 : x
  2. Step 2: Convert to fraction form
    1,289,441,659.80/1,934,162,489.70 = 552,386,136.90/x
  3. Step 3: Cross multiply
    1,289,441,659.80x = 1,934,162,489.70 × 552,386,136.90
  4. Step 4: Simplify right side
    1,289,441,659.80x = 1,068,404,545,822,269,056
  5. Step 5: Solve for x
    x = 1,068,404,545,822,269,056/1,289,441,659.80
  6. Step 6: Final answer
    x = 828,579,205.35

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Half scale
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Double scale
Find fourth proportional to 1,289,441,660.80, 1,934,162,491.20 and 552,386,137.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.