Home / 418,412,738.70-627,709,901.42-127,272,294.63

Finding the Fourth Proportional to 418,412,738.70, 627,709,901.42 and 127,272,294.63

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Solution

The fourth proportional to 418,412,738.70, 627,709,901.42 and 127,272,294.63 is: 190,936,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,412,738.70 : 627,709,901.42 = 127,272,294.63 : x
  2. Step 2: Convert to fraction form
    418,412,738.70/627,709,901.42 = 127,272,294.63/x
  3. Step 3: Cross multiply
    418,412,738.70x = 627,709,901.42 × 127,272,294.63
  4. Step 4: Simplify right side
    418,412,738.70x = 79,890,079,516,012,672
  5. Step 5: Solve for x
    x = 79,890,079,516,012,672/418,412,738.70
  6. Step 6: Final answer
    x = 190,936,059.37

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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.