Home / 249,986,839.20-344,984,597.30-138,479,388

Finding the Fourth Proportional to 249,986,839.20, 344,984,597.30 and 138,479,388

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Solution

The fourth proportional to 249,986,839.20, 344,984,597.30 and 138,479,388 is: 191,103,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,986,839.20 : 344,984,597.30 = 138,479,388 : x
  2. Step 2: Convert to fraction form
    249,986,839.20/344,984,597.30 = 138,479,388/x
  3. Step 3: Cross multiply
    249,986,839.20x = 344,984,597.30 × 138,479,388
  4. Step 4: Simplify right side
    249,986,839.20x = 47,773,255,903,530,456
  5. Step 5: Solve for x
    x = 47,773,255,903,530,456/249,986,839.20
  6. Step 6: Final answer
    x = 191,103,083.89

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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.