Home / 132,856,277.90-199,284,416.85-81,572,002.70

Finding the Fourth Proportional to 132,856,277.90, 199,284,416.85 and 81,572,002.70

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Solution

The fourth proportional to 132,856,277.90, 199,284,416.85 and 81,572,002.70 is: 122,358,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,856,277.90 : 199,284,416.85 = 81,572,002.70 : x
  2. Step 2: Convert to fraction form
    132,856,277.90/199,284,416.85 = 81,572,002.70/x
  3. Step 3: Cross multiply
    132,856,277.90x = 199,284,416.85 × 81,572,002.70
  4. Step 4: Simplify right side
    132,856,277.90x = 16,256,028,989,356,126
  5. Step 5: Solve for x
    x = 16,256,028,989,356,126/132,856,277.90
  6. Step 6: Final answer
    x = 122,358,004.05

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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.