Home / 128,260,659.42-192,321,779.18-58,192,645.71

Finding the Fourth Proportional to 128,260,659.42, 192,321,779.18 and 58,192,645.71

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Solution

The fourth proportional to 128,260,659.42, 192,321,779.18 and 58,192,645.71 is: 87,257,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,260,659.42 : 192,321,779.18 = 58,192,645.71 : x
  2. Step 2: Convert to fraction form
    128,260,659.42/192,321,779.18 = 58,192,645.71/x
  3. Step 3: Cross multiply
    128,260,659.42x = 192,321,779.18 × 58,192,645.71
  4. Step 4: Simplify right side
    128,260,659.42x = 11,191,713,158,138,594
  5. Step 5: Solve for x
    x = 11,191,713,158,138,594/128,260,659.42
  6. Step 6: Final answer
    x = 87,257,567.59

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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.