Home / 1,441,855,417.96-1,989,799,601.95-815,417,524

Finding the Fourth Proportional to 1,441,855,417.96, 1,989,799,601.95 and 815,417,524

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Solution

The fourth proportional to 1,441,855,417.96, 1,989,799,601.95 and 815,417,524 is: 1,125,298,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,855,417.96 : 1,989,799,601.95 = 815,417,524 : x
  2. Step 2: Convert to fraction form
    1,441,855,417.96/1,989,799,601.95 = 815,417,524/x
  3. Step 3: Cross multiply
    1,441,855,417.96x = 1,989,799,601.95 × 815,417,524
  4. Step 4: Simplify right side
    1,441,855,417.96x = 1,622,517,464,678,254,592
  5. Step 5: Solve for x
    x = 1,622,517,464,678,254,592/1,441,855,417.96
  6. Step 6: Final answer
    x = 1,125,298,309.71

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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.