Home / 91,506,449.01-126,278,440.71-49,690,140.78

Finding the Fourth Proportional to 91,506,449.01, 126,278,440.71 and 49,690,140.78

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Solution

The fourth proportional to 91,506,449.01, 126,278,440.71 and 49,690,140.78 is: 68,572,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,506,449.01 : 126,278,440.71 = 49,690,140.78 : x
  2. Step 2: Convert to fraction form
    91,506,449.01/126,278,440.71 = 49,690,140.78/x
  3. Step 3: Cross multiply
    91,506,449.01x = 126,278,440.71 × 49,690,140.78
  4. Step 4: Simplify right side
    91,506,449.01x = 6,274,793,496,358,783
  5. Step 5: Solve for x
    x = 6,274,793,496,358,783/91,506,449.01
  6. Step 6: Final answer
    x = 68,572,145.07

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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.