Home / 1,181,947,123.40-1,772,920,685.10-363,953,136.20

Finding the Fourth Proportional to 1,181,947,123.40, 1,772,920,685.10 and 363,953,136.20

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Solution

The fourth proportional to 1,181,947,123.40, 1,772,920,685.10 and 363,953,136.20 is: 545,929,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,947,123.40 : 1,772,920,685.10 = 363,953,136.20 : x
  2. Step 2: Convert to fraction form
    1,181,947,123.40/1,772,920,685.10 = 363,953,136.20/x
  3. Step 3: Cross multiply
    1,181,947,123.40x = 1,772,920,685.10 × 363,953,136.20
  4. Step 4: Simplify right side
    1,181,947,123.40x = 645,260,043,575,997,568
  5. Step 5: Solve for x
    x = 645,260,043,575,997,568/1,181,947,123.40
  6. Step 6: Final answer
    x = 545,929,704.30

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Half scale
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Double scale
Find fourth proportional to 1,181,947,124.40, 1,772,920,686.60 and 363,953,137.20
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.