Home / 129,895,776.96-179,255,641.32-71,158,359.12

Finding the Fourth Proportional to 129,895,776.96, 179,255,641.32 and 71,158,359.12

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Solution

The fourth proportional to 129,895,776.96, 179,255,641.32 and 71,158,359.12 is: 98,198,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,895,776.96 : 179,255,641.32 = 71,158,359.12 : x
  2. Step 2: Convert to fraction form
    129,895,776.96/179,255,641.32 = 71,158,359.12/x
  3. Step 3: Cross multiply
    129,895,776.96x = 179,255,641.32 × 71,158,359.12
  4. Step 4: Simplify right side
    129,895,776.96x = 12,755,537,299,334,472
  5. Step 5: Solve for x
    x = 12,755,537,299,334,472/129,895,776.96
  6. Step 6: Final answer
    x = 98,198,244.76

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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.