Home / 132,856,276.90-199,284,415.35-81,572,001.70

Finding the Fourth Proportional to 132,856,276.90, 199,284,415.35 and 81,572,001.70

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Solution

The fourth proportional to 132,856,276.90, 199,284,415.35 and 81,572,001.70 is: 122,358,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,856,276.90 : 199,284,415.35 = 81,572,001.70 : x
  2. Step 2: Convert to fraction form
    132,856,276.90/199,284,415.35 = 81,572,001.70/x
  3. Step 3: Cross multiply
    132,856,276.90x = 199,284,415.35 × 81,572,001.70
  4. Step 4: Simplify right side
    132,856,276.90x = 16,256,028,667,713,706
  5. Step 5: Solve for x
    x = 16,256,028,667,713,706/132,856,276.90
  6. Step 6: Final answer
    x = 122,358,002.55

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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.