Home / 81,490,168.20-122,235,252.30-49,125,411.30

Finding the Fourth Proportional to 81,490,168.20, 122,235,252.30 and 49,125,411.30

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Solution

The fourth proportional to 81,490,168.20, 122,235,252.30 and 49,125,411.30 is: 73,688,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490,168.20 : 122,235,252.30 = 49,125,411.30 : x
  2. Step 2: Convert to fraction form
    81,490,168.20/122,235,252.30 = 49,125,411.30/x
  3. Step 3: Cross multiply
    81,490,168.20x = 122,235,252.30 × 49,125,411.30
  4. Step 4: Simplify right side
    81,490,168.20x = 6,004,857,044,596,770
  5. Step 5: Solve for x
    x = 6,004,857,044,596,770/81,490,168.20
  6. Step 6: Final answer
    x = 73,688,116.95

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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.