Home / 500,096,013.50-690,132,498.63-280,079,439.50

Finding the Fourth Proportional to 500,096,013.50, 690,132,498.63 and 280,079,439.50

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Solution

The fourth proportional to 500,096,013.50, 690,132,498.63 and 280,079,439.50 is: 386,509,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,096,013.50 : 690,132,498.63 = 280,079,439.50 : x
  2. Step 2: Convert to fraction form
    500,096,013.50/690,132,498.63 = 280,079,439.50/x
  3. Step 3: Cross multiply
    500,096,013.50x = 690,132,498.63 × 280,079,439.50
  4. Step 4: Simplify right side
    500,096,013.50x = 193,291,923,397,024,928
  5. Step 5: Solve for x
    x = 193,291,923,397,024,928/500,096,013.50
  6. Step 6: Final answer
    x = 386,509,626.51

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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.