Home / 288,584,770.46-398,236,314.03-156,422,929.43

Finding the Fourth Proportional to 288,584,770.46, 398,236,314.03 and 156,422,929.43

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Solution

The fourth proportional to 288,584,770.46, 398,236,314.03 and 156,422,929.43 is: 215,857,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,770.46 : 398,236,314.03 = 156,422,929.43 : x
  2. Step 2: Convert to fraction form
    288,584,770.46/398,236,314.03 = 156,422,929.43/x
  3. Step 3: Cross multiply
    288,584,770.46x = 398,236,314.03 × 156,422,929.43
  4. Step 4: Simplify right side
    288,584,770.46x = 62,293,290,844,144,936
  5. Step 5: Solve for x
    x = 62,293,290,844,144,936/288,584,770.46
  6. Step 6: Final answer
    x = 215,857,859.53

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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.