Home / 127,892,752.20-176,481,334.80-72,135,099.72

Finding the Fourth Proportional to 127,892,752.20, 176,481,334.80 and 72,135,099.72

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Solution

The fourth proportional to 127,892,752.20, 176,481,334.80 and 72,135,099.72 is: 99,540,423.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,892,752.20 : 176,481,334.80 = 72,135,099.72 : x
  2. Step 2: Convert to fraction form
    127,892,752.20/176,481,334.80 = 72,135,099.72/x
  3. Step 3: Cross multiply
    127,892,752.20x = 176,481,334.80 × 72,135,099.72
  4. Step 4: Simplify right side
    127,892,752.20x = 12,730,498,684,516,706
  5. Step 5: Solve for x
    x = 12,730,498,684,516,706/127,892,752.20
  6. Step 6: Final answer
    x = 99,540,423.25

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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.