Home / 256,681,819.22-384,995,434.34-72,444,740.18

Finding the Fourth Proportional to 256,681,819.22, 384,995,434.34 and 72,444,740.18

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Solution

The fourth proportional to 256,681,819.22, 384,995,434.34 and 72,444,740.18 is: 108,659,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,681,819.22 : 384,995,434.34 = 72,444,740.18 : x
  2. Step 2: Convert to fraction form
    256,681,819.22/384,995,434.34 = 72,444,740.18/x
  3. Step 3: Cross multiply
    256,681,819.22x = 384,995,434.34 × 72,444,740.18
  4. Step 4: Simplify right side
    256,681,819.22x = 27,890,894,209,503,680
  5. Step 5: Solve for x
    x = 27,890,894,209,503,680/256,681,819.22
  6. Step 6: Final answer
    x = 108,659,406.79

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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.