Home / 118,098,312.20-177,147,468.30-72,181,809.80

Finding the Fourth Proportional to 118,098,312.20, 177,147,468.30 and 72,181,809.80

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Solution

The fourth proportional to 118,098,312.20, 177,147,468.30 and 72,181,809.80 is: 108,272,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,312.20 : 177,147,468.30 = 72,181,809.80 : x
  2. Step 2: Convert to fraction form
    118,098,312.20/177,147,468.30 = 72,181,809.80/x
  3. Step 3: Cross multiply
    118,098,312.20x = 177,147,468.30 × 72,181,809.80
  4. Step 4: Simplify right side
    118,098,312.20x = 12,786,824,863,382,130
  5. Step 5: Solve for x
    x = 12,786,824,863,382,130/118,098,312.20
  6. Step 6: Final answer
    x = 108,272,714.70

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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.