Home / 131,126,464.89-180,949,768.65-72,387,865.80

Finding the Fourth Proportional to 131,126,464.89, 180,949,768.65 and 72,387,865.80

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Solution

The fourth proportional to 131,126,464.89, 180,949,768.65 and 72,387,865.80 is: 99,892,630.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,126,464.89 : 180,949,768.65 = 72,387,865.80 : x
  2. Step 2: Convert to fraction form
    131,126,464.89/180,949,768.65 = 72,387,865.80/x
  3. Step 3: Cross multiply
    131,126,464.89x = 180,949,768.65 × 72,387,865.80
  4. Step 4: Simplify right side
    131,126,464.89x = 13,098,567,569,577,248
  5. Step 5: Solve for x
    x = 13,098,567,569,577,248/131,126,464.89
  6. Step 6: Final answer
    x = 99,892,630.98

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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.