Home / 541,407,041.31-747,120,193.65-306,506,428.77

Finding the Fourth Proportional to 541,407,041.31, 747,120,193.65 and 306,506,428.77

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Solution

The fourth proportional to 541,407,041.31, 747,120,193.65 and 306,506,428.77 is: 422,966,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,407,041.31 : 747,120,193.65 = 306,506,428.77 : x
  2. Step 2: Convert to fraction form
    541,407,041.31/747,120,193.65 = 306,506,428.77/x
  3. Step 3: Cross multiply
    541,407,041.31x = 747,120,193.65 × 306,506,428.77
  4. Step 4: Simplify right side
    541,407,041.31x = 228,997,142,417,612,320
  5. Step 5: Solve for x
    x = 228,997,142,417,612,320/541,407,041.31
  6. Step 6: Final answer
    x = 422,966,686.70

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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.