Home / 1,320,341,778.59-1,822,115,349.90-725,647,336.70

Finding the Fourth Proportional to 1,320,341,778.59, 1,822,115,349.90 and 725,647,336.70

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Solution

The fourth proportional to 1,320,341,778.59, 1,822,115,349.90 and 725,647,336.70 is: 1,001,417,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,341,778.59 : 1,822,115,349.90 = 725,647,336.70 : x
  2. Step 2: Convert to fraction form
    1,320,341,778.59/1,822,115,349.90 = 725,647,336.70/x
  3. Step 3: Cross multiply
    1,320,341,778.59x = 1,822,115,349.90 × 725,647,336.70
  4. Step 4: Simplify right side
    1,320,341,778.59x = 1,322,213,150,806,013,184
  5. Step 5: Solve for x
    x = 1,322,213,150,806,013,184/1,320,341,778.59
  6. Step 6: Final answer
    x = 1,001,417,339.25

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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.