Home / 128,304,491.10-192,456,736.65-120,746,219.10

Finding the Fourth Proportional to 128,304,491.10, 192,456,736.65 and 120,746,219.10

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Solution

The fourth proportional to 128,304,491.10, 192,456,736.65 and 120,746,219.10 is: 181,119,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,491.10 : 192,456,736.65 = 120,746,219.10 : x
  2. Step 2: Convert to fraction form
    128,304,491.10/192,456,736.65 = 120,746,219.10/x
  3. Step 3: Cross multiply
    128,304,491.10x = 192,456,736.65 × 120,746,219.10
  4. Step 4: Simplify right side
    128,304,491.10x = 23,238,423,290,811,900
  5. Step 5: Solve for x
    x = 23,238,423,290,811,900/128,304,491.10
  6. Step 6: Final answer
    x = 181,119,328.65

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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.