Home / 215,609,077.20-323,413,615.80-79,266,248.40

Finding the Fourth Proportional to 215,609,077.20, 323,413,615.80 and 79,266,248.40

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Solution

The fourth proportional to 215,609,077.20, 323,413,615.80 and 79,266,248.40 is: 118,899,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,609,077.20 : 323,413,615.80 = 79,266,248.40 : x
  2. Step 2: Convert to fraction form
    215,609,077.20/323,413,615.80 = 79,266,248.40/x
  3. Step 3: Cross multiply
    215,609,077.20x = 323,413,615.80 × 79,266,248.40
  4. Step 4: Simplify right side
    215,609,077.20x = 25,635,784,005,944,968
  5. Step 5: Solve for x
    x = 25,635,784,005,944,968/215,609,077.20
  6. Step 6: Final answer
    x = 118,899,372.60

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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.