Home / 131,124,669.67-180,952,312.13-72,387,415.59

Finding the Fourth Proportional to 131,124,669.67, 180,952,312.13 and 72,387,415.59

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Solution

The fourth proportional to 131,124,669.67, 180,952,312.13 and 72,387,415.59 is: 99,894,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,124,669.67 : 180,952,312.13 = 72,387,415.59 : x
  2. Step 2: Convert to fraction form
    131,124,669.67/180,952,312.13 = 72,387,415.59/x
  3. Step 3: Cross multiply
    131,124,669.67x = 180,952,312.13 × 72,387,415.59
  4. Step 4: Simplify right side
    131,124,669.67x = 13,098,670,220,125,708
  5. Step 5: Solve for x
    x = 13,098,670,220,125,708/131,124,669.67
  6. Step 6: Final answer
    x = 99,894,781.46

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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.