Home / 140,232,257.40-211,305,572.85-115,233,272.76

Finding the Fourth Proportional to 140,232,257.40, 211,305,572.85 and 115,233,272.76

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Solution

The fourth proportional to 140,232,257.40, 211,305,572.85 and 115,233,272.76 is: 173,636,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,232,257.40 : 211,305,572.85 = 115,233,272.76 : x
  2. Step 2: Convert to fraction form
    140,232,257.40/211,305,572.85 = 115,233,272.76/x
  3. Step 3: Cross multiply
    140,232,257.40x = 211,305,572.85 × 115,233,272.76
  4. Step 4: Simplify right side
    140,232,257.40x = 24,349,432,711,932,100
  5. Step 5: Solve for x
    x = 24,349,432,711,932,100/140,232,257.40
  6. Step 6: Final answer
    x = 173,636,459.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.