Home / 129,915,026.82-179,282,731.86-71,179,917.21

Finding the Fourth Proportional to 129,915,026.82, 179,282,731.86 and 71,179,917.21

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Solution

The fourth proportional to 129,915,026.82, 179,282,731.86 and 71,179,917.21 is: 98,228,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,915,026.82 : 179,282,731.86 = 71,179,917.21 : x
  2. Step 2: Convert to fraction form
    129,915,026.82/179,282,731.86 = 71,179,917.21/x
  3. Step 3: Cross multiply
    129,915,026.82x = 179,282,731.86 × 71,179,917.21
  4. Step 4: Simplify right side
    129,915,026.82x = 12,761,330,010,977,430
  5. Step 5: Solve for x
    x = 12,761,330,010,977,430/129,915,026.82
  6. Step 6: Final answer
    x = 98,228,282.93

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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.