Home / 131,381,760.96-181,299,503.16-72,640,897.92

Finding the Fourth Proportional to 131,381,760.96, 181,299,503.16 and 72,640,897.92

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Solution

The fourth proportional to 131,381,760.96, 181,299,503.16 and 72,640,897.92 is: 100,240,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,381,760.96 : 181,299,503.16 = 72,640,897.92 : x
  2. Step 2: Convert to fraction form
    131,381,760.96/181,299,503.16 = 72,640,897.92/x
  3. Step 3: Cross multiply
    131,381,760.96x = 181,299,503.16 × 72,640,897.92
  4. Step 4: Simplify right side
    131,381,760.96x = 13,169,758,701,992,278
  5. Step 5: Solve for x
    x = 13,169,758,701,992,278/131,381,760.96
  6. Step 6: Final answer
    x = 100,240,388.06

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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.