Home / 112,435,948.28-155,200,616.02-77,270,162.88

Finding the Fourth Proportional to 112,435,948.28, 155,200,616.02 and 77,270,162.88

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Solution

The fourth proportional to 112,435,948.28, 155,200,616.02 and 77,270,162.88 is: 106,659,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,435,948.28 : 155,200,616.02 = 77,270,162.88 : x
  2. Step 2: Convert to fraction form
    112,435,948.28/155,200,616.02 = 77,270,162.88/x
  3. Step 3: Cross multiply
    112,435,948.28x = 155,200,616.02 × 77,270,162.88
  4. Step 4: Simplify right side
    112,435,948.28x = 11,992,376,878,941,738
  5. Step 5: Solve for x
    x = 11,992,376,878,941,738/112,435,948.28
  6. Step 6: Final answer
    x = 106,659,632.11

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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.