Home / 105,189,909.96-145,165,288.26-58,782,119.88

Finding the Fourth Proportional to 105,189,909.96, 145,165,288.26 and 58,782,119.88

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Solution

The fourth proportional to 105,189,909.96, 145,165,288.26 and 58,782,119.88 is: 81,121,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,189,909.96 : 145,165,288.26 = 58,782,119.88 : x
  2. Step 2: Convert to fraction form
    105,189,909.96/145,165,288.26 = 58,782,119.88/x
  3. Step 3: Cross multiply
    105,189,909.96x = 145,165,288.26 × 58,782,119.88
  4. Step 4: Simplify right side
    105,189,909.96x = 8,533,123,376,914,076
  5. Step 5: Solve for x
    x = 8,533,123,376,914,076/105,189,909.96
  6. Step 6: Final answer
    x = 81,121,120.65

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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.