Home / 278,840,603.90-418,260,905.85-97,087,781.90

Finding the Fourth Proportional to 278,840,603.90, 418,260,905.85 and 97,087,781.90

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Solution

The fourth proportional to 278,840,603.90, 418,260,905.85 and 97,087,781.90 is: 145,631,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840,603.90 : 418,260,905.85 = 97,087,781.90 : x
  2. Step 2: Convert to fraction form
    278,840,603.90/418,260,905.85 = 97,087,781.90/x
  3. Step 3: Cross multiply
    278,840,603.90x = 418,260,905.85 × 97,087,781.90
  4. Step 4: Simplify right side
    278,840,603.90x = 40,608,023,604,461,240
  5. Step 5: Solve for x
    x = 40,608,023,604,461,240/278,840,603.90
  6. Step 6: Final answer
    x = 145,631,672.85

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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.