Home / 418,566,528.70-627,849,793.05-127,431,339.10

Finding the Fourth Proportional to 418,566,528.70, 627,849,793.05 and 127,431,339.10

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Solution

The fourth proportional to 418,566,528.70, 627,849,793.05 and 127,431,339.10 is: 191,147,008.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,566,528.70 : 627,849,793.05 = 127,431,339.10 : x
  2. Step 2: Convert to fraction form
    418,566,528.70/627,849,793.05 = 127,431,339.10/x
  3. Step 3: Cross multiply
    418,566,528.70x = 627,849,793.05 × 127,431,339.10
  4. Step 4: Simplify right side
    418,566,528.70x = 80,007,739,882,019,360
  5. Step 5: Solve for x
    x = 80,007,739,882,019,360/418,566,528.70
  6. Step 6: Final answer
    x = 191,147,008.65

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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.