Home / 91,506,440.89-126,278,429.51-49,690,132.67

Finding the Fourth Proportional to 91,506,440.89, 126,278,429.51 and 49,690,132.67

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Solution

The fourth proportional to 91,506,440.89, 126,278,429.51 and 49,690,132.67 is: 68,572,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,506,440.89 : 126,278,429.51 = 49,690,132.67 : x
  2. Step 2: Convert to fraction form
    91,506,440.89/126,278,429.51 = 49,690,132.67/x
  3. Step 3: Cross multiply
    91,506,440.89x = 126,278,429.51 × 49,690,132.67
  4. Step 4: Simplify right side
    91,506,440.89x = 6,274,791,915,146,996
  5. Step 5: Solve for x
    x = 6,274,791,915,146,996/91,506,440.89
  6. Step 6: Final answer
    x = 68,572,133.88

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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.