Home / 120,294,171.60-166,006,118.16-65,290,013.52

Finding the Fourth Proportional to 120,294,171.60, 166,006,118.16 and 65,290,013.52

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Solution

The fourth proportional to 120,294,171.60, 166,006,118.16 and 65,290,013.52 is: 90,100,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,294,171.60 : 166,006,118.16 = 65,290,013.52 : x
  2. Step 2: Convert to fraction form
    120,294,171.60/166,006,118.16 = 65,290,013.52/x
  3. Step 3: Cross multiply
    120,294,171.60x = 166,006,118.16 × 65,290,013.52
  4. Step 4: Simplify right side
    120,294,171.60x = 10,838,541,699,069,118
  5. Step 5: Solve for x
    x = 10,838,541,699,069,118/120,294,171.60
  6. Step 6: Final answer
    x = 90,100,306.23

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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.