Home / 129,890,574.45-179,249,026.41-71,155,327.61

Finding the Fourth Proportional to 129,890,574.45, 179,249,026.41 and 71,155,327.61

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Solution

The fourth proportional to 129,890,574.45, 179,249,026.41 and 71,155,327.61 is: 98,194,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,890,574.45 : 179,249,026.41 = 71,155,327.61 : x
  2. Step 2: Convert to fraction form
    129,890,574.45/179,249,026.41 = 71,155,327.61/x
  3. Step 3: Cross multiply
    129,890,574.45x = 179,249,026.41 × 71,155,327.61
  4. Step 4: Simplify right side
    129,890,574.45x = 12,754,523,198,425,214
  5. Step 5: Solve for x
    x = 12,754,523,198,425,214/129,890,574.45
  6. Step 6: Final answer
    x = 98,194,370.55

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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.