Home / 278,840,602.90-418,260,904.35-97,087,780.90

Finding the Fourth Proportional to 278,840,602.90, 418,260,904.35 and 97,087,780.90

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Solution

The fourth proportional to 278,840,602.90, 418,260,904.35 and 97,087,780.90 is: 145,631,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840,602.90 : 418,260,904.35 = 97,087,780.90 : x
  2. Step 2: Convert to fraction form
    278,840,602.90/418,260,904.35 = 97,087,780.90/x
  3. Step 3: Cross multiply
    278,840,602.90x = 418,260,904.35 × 97,087,780.90
  4. Step 4: Simplify right side
    278,840,602.90x = 40,608,023,040,568,664
  5. Step 5: Solve for x
    x = 40,608,023,040,568,664/278,840,602.90
  6. Step 6: Final answer
    x = 145,631,671.35

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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.