Home / 80,375,708.52-120,411,437.40-47,487,925.68

Finding the Fourth Proportional to 80,375,708.52, 120,411,437.40 and 47,487,925.68

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Solution

The fourth proportional to 80,375,708.52, 120,411,437.40 and 47,487,925.68 is: 71,142,009.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,375,708.52 : 120,411,437.40 = 47,487,925.68 : x
  2. Step 2: Convert to fraction form
    80,375,708.52/120,411,437.40 = 47,487,925.68/x
  3. Step 3: Cross multiply
    80,375,708.52x = 120,411,437.40 × 47,487,925.68
  4. Step 4: Simplify right side
    80,375,708.52x = 5,718,089,390,273,173
  5. Step 5: Solve for x
    x = 5,718,089,390,273,173/80,375,708.52
  6. Step 6: Final answer
    x = 71,142,009.14

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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.