Home / 498,750,140.40-688,296,449.88-278,733,559.92

Finding the Fourth Proportional to 498,750,140.40, 688,296,449.88 and 278,733,559.92

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Solution

The fourth proportional to 498,750,140.40, 688,296,449.88 and 278,733,559.92 is: 384,664,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,750,140.40 : 688,296,449.88 = 278,733,559.92 : x
  2. Step 2: Convert to fraction form
    498,750,140.40/688,296,449.88 = 278,733,559.92/x
  3. Step 3: Cross multiply
    498,750,140.40x = 688,296,449.88 × 278,733,559.92
  4. Step 4: Simplify right side
    498,750,140.40x = 191,851,319,755,350,272
  5. Step 5: Solve for x
    x = 191,851,319,755,350,272/498,750,140.40
  6. Step 6: Final answer
    x = 384,664,191.98

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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.