Home / 278,840,612.40-418,260,918.60-97,087,790.40

Finding the Fourth Proportional to 278,840,612.40, 418,260,918.60 and 97,087,790.40

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Solution

The fourth proportional to 278,840,612.40, 418,260,918.60 and 97,087,790.40 is: 145,631,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840,612.40 : 418,260,918.60 = 97,087,790.40 : x
  2. Step 2: Convert to fraction form
    278,840,612.40/418,260,918.60 = 97,087,790.40/x
  3. Step 3: Cross multiply
    278,840,612.40x = 418,260,918.60 × 97,087,790.40
  4. Step 4: Simplify right side
    278,840,612.40x = 40,608,028,397,548,264
  5. Step 5: Solve for x
    x = 40,608,028,397,548,264/278,840,612.40
  6. Step 6: Final answer
    x = 145,631,685.60

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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.