Home / 99,680,161.40-149,359,278.90-56,420,718.20

Finding the Fourth Proportional to 99,680,161.40, 149,359,278.90 and 56,420,718.20

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Solution

The fourth proportional to 99,680,161.40, 149,359,278.90 and 56,420,718.20 is: 84,539,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680,161.40 : 149,359,278.90 = 56,420,718.20 : x
  2. Step 2: Convert to fraction form
    99,680,161.40/149,359,278.90 = 56,420,718.20/x
  3. Step 3: Cross multiply
    99,680,161.40x = 149,359,278.90 × 56,420,718.20
  4. Step 4: Simplify right side
    99,680,161.40x = 8,426,957,785,372,107
  5. Step 5: Solve for x
    x = 8,426,957,785,372,107/99,680,161.40
  6. Step 6: Final answer
    x = 84,539,969.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.