Home / 91,611,143.28-126,424,224.36-49,795,306.92

Finding the Fourth Proportional to 91,611,143.28, 126,424,224.36 and 49,795,306.92

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Solution

The fourth proportional to 91,611,143.28, 126,424,224.36 and 49,795,306.92 is: 68,717,983.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,611,143.28 : 126,424,224.36 = 49,795,306.92 : x
  2. Step 2: Convert to fraction form
    91,611,143.28/126,424,224.36 = 49,795,306.92/x
  3. Step 3: Cross multiply
    91,611,143.28x = 126,424,224.36 × 49,795,306.92
  4. Step 4: Simplify right side
    91,611,143.28x = 6,295,333,054,129,141
  5. Step 5: Solve for x
    x = 6,295,333,054,129,141/91,611,143.28
  6. Step 6: Final answer
    x = 68,717,983.74

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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.