Home / 120,331,428.96-180,564,209.12-64,998,149.44

Finding the Fourth Proportional to 120,331,428.96, 180,564,209.12 and 64,998,149.44

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Solution

The fourth proportional to 120,331,428.96, 180,564,209.12 and 64,998,149.44 is: 97,533,450.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,331,428.96 : 180,564,209.12 = 64,998,149.44 : x
  2. Step 2: Convert to fraction form
    120,331,428.96/180,564,209.12 = 64,998,149.44/x
  3. Step 3: Cross multiply
    120,331,428.96x = 180,564,209.12 × 64,998,149.44
  4. Step 4: Simplify right side
    120,331,428.96x = 11,736,339,447,897,170
  5. Step 5: Solve for x
    x = 11,736,339,447,897,170/120,331,428.96
  6. Step 6: Final answer
    x = 97,533,450.32

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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.