Home / 769,559,390.87-1,061,963,508.17-417,127,814.78

Finding the Fourth Proportional to 769,559,390.87, 1,061,963,508.17 and 417,127,814.78

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Solution

The fourth proportional to 769,559,390.87, 1,061,963,508.17 and 417,127,814.78 is: 575,620,962.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,559,390.87 : 1,061,963,508.17 = 417,127,814.78 : x
  2. Step 2: Convert to fraction form
    769,559,390.87/1,061,963,508.17 = 417,127,814.78/x
  3. Step 3: Cross multiply
    769,559,390.87x = 1,061,963,508.17 × 417,127,814.78
  4. Step 4: Simplify right side
    769,559,390.87x = 442,974,517,531,659,264
  5. Step 5: Solve for x
    x = 442,974,517,531,659,264/769,559,390.87
  6. Step 6: Final answer
    x = 575,620,962.84

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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.