Home / 1,223,965,198.92-1,689,022,677.78-667,036,259.40

Finding the Fourth Proportional to 1,223,965,198.92, 1,689,022,677.78 and 667,036,259.40

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Solution

The fourth proportional to 1,223,965,198.92, 1,689,022,677.78 and 667,036,259.40 is: 920,483,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,965,198.92 : 1,689,022,677.78 = 667,036,259.40 : x
  2. Step 2: Convert to fraction form
    1,223,965,198.92/1,689,022,677.78 = 667,036,259.40/x
  3. Step 3: Cross multiply
    1,223,965,198.92x = 1,689,022,677.78 × 667,036,259.40
  4. Step 4: Simplify right side
    1,223,965,198.92x = 1,126,639,369,028,142,592
  5. Step 5: Solve for x
    x = 1,126,639,369,028,142,592/1,223,965,198.92
  6. Step 6: Final answer
    x = 920,483,172.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.