Home / 120,331,456.80-180,564,251.40-64,998,177.36

Finding the Fourth Proportional to 120,331,456.80, 180,564,251.40 and 64,998,177.36

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Solution

The fourth proportional to 120,331,456.80, 180,564,251.40 and 64,998,177.36 is: 97,533,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,331,456.80 : 180,564,251.40 = 64,998,177.36 : x
  2. Step 2: Convert to fraction form
    120,331,456.80/180,564,251.40 = 64,998,177.36/x
  3. Step 3: Cross multiply
    120,331,456.80x = 180,564,251.40 × 64,998,177.36
  4. Step 4: Simplify right side
    120,331,456.80x = 11,736,347,237,372,828
  5. Step 5: Solve for x
    x = 11,736,347,237,372,828/120,331,456.80
  6. Step 6: Final answer
    x = 97,533,492.48

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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.