Home / 86,902,387.20-130,369,327.20-43,662,772.80

Finding the Fourth Proportional to 86,902,387.20, 130,369,327.20 and 43,662,772.80

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Solution

The fourth proportional to 86,902,387.20, 130,369,327.20 and 43,662,772.80 is: 65,502,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,902,387.20 : 130,369,327.20 = 43,662,772.80 : x
  2. Step 2: Convert to fraction form
    86,902,387.20/130,369,327.20 = 43,662,772.80/x
  3. Step 3: Cross multiply
    86,902,387.20x = 130,369,327.20 × 43,662,772.80
  4. Step 4: Simplify right side
    86,902,387.20x = 5,692,286,313,622,460
  5. Step 5: Solve for x
    x = 5,692,286,313,622,460/86,902,387.20
  6. Step 6: Final answer
    x = 65,502,070.74

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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.