Home / 249,986,838.20-344,984,595.92-138,479,387

Finding the Fourth Proportional to 249,986,838.20, 344,984,595.92 and 138,479,387

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Solution

The fourth proportional to 249,986,838.20, 344,984,595.92 and 138,479,387 is: 191,103,082.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,986,838.20 : 344,984,595.92 = 138,479,387 : x
  2. Step 2: Convert to fraction form
    249,986,838.20/344,984,595.92 = 138,479,387/x
  3. Step 3: Cross multiply
    249,986,838.20x = 344,984,595.92 × 138,479,387
  4. Step 4: Simplify right side
    249,986,838.20x = 47,773,255,367,444,304
  5. Step 5: Solve for x
    x = 47,773,255,367,444,304/249,986,838.20
  6. Step 6: Final answer
    x = 191,103,082.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.