Home / 128,304,518.10-192,456,777.15-120,746,246.10

Finding the Fourth Proportional to 128,304,518.10, 192,456,777.15 and 120,746,246.10

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Solution

The fourth proportional to 128,304,518.10, 192,456,777.15 and 120,746,246.10 is: 181,119,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,518.10 : 192,456,777.15 = 120,746,246.10 : x
  2. Step 2: Convert to fraction form
    128,304,518.10/192,456,777.15 = 120,746,246.10/x
  3. Step 3: Cross multiply
    128,304,518.10x = 192,456,777.15 × 120,746,246.10
  4. Step 4: Simplify right side
    128,304,518.10x = 23,238,433,377,366,756
  5. Step 5: Solve for x
    x = 23,238,433,377,366,756/128,304,518.10
  6. Step 6: Final answer
    x = 181,119,369.15

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1.5x scale

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.