Home / 412,617,079.89-618,794,309.54-136,216,830.12

Finding the Fourth Proportional to 412,617,079.89, 618,794,309.54 and 136,216,830.12

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Solution

The fourth proportional to 412,617,079.89, 618,794,309.54 and 136,216,830.12 is: 204,281,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,617,079.89 : 618,794,309.54 = 136,216,830.12 : x
  2. Step 2: Convert to fraction form
    412,617,079.89/618,794,309.54 = 136,216,830.12/x
  3. Step 3: Cross multiply
    412,617,079.89x = 618,794,309.54 × 136,216,830.12
  4. Step 4: Simplify right side
    412,617,079.89x = 84,290,199,341,832,880
  5. Step 5: Solve for x
    x = 84,290,199,341,832,880/412,617,079.89
  6. Step 6: Final answer
    x = 204,281,895.85

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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.