Home / 278,884,300.87-418,377,526.97-115,032,674.53

Finding the Fourth Proportional to 278,884,300.87, 418,377,526.97 and 115,032,674.53

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Solution

The fourth proportional to 278,884,300.87, 418,377,526.97 and 115,032,674.53 is: 172,570,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,884,300.87 : 418,377,526.97 = 115,032,674.53 : x
  2. Step 2: Convert to fraction form
    278,884,300.87/418,377,526.97 = 115,032,674.53/x
  3. Step 3: Cross multiply
    278,884,300.87x = 418,377,526.97 × 115,032,674.53
  4. Step 4: Simplify right side
    278,884,300.87x = 48,127,085,890,349,288
  5. Step 5: Solve for x
    x = 48,127,085,890,349,288/278,884,300.87
  6. Step 6: Final answer
    x = 172,570,079.20

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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.