Home / 500,373,548.32-690,515,032.08-280,358,548.96

Finding the Fourth Proportional to 500,373,548.32, 690,515,032.08 and 280,358,548.96

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Solution

The fourth proportional to 500,373,548.32, 690,515,032.08 and 280,358,548.96 is: 386,894,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,373,548.32 : 690,515,032.08 = 280,358,548.96 : x
  2. Step 2: Convert to fraction form
    500,373,548.32/690,515,032.08 = 280,358,548.96/x
  3. Step 3: Cross multiply
    500,373,548.32x = 690,515,032.08 × 280,358,548.96
  4. Step 4: Simplify right side
    500,373,548.32x = 193,591,792,429,016,640
  5. Step 5: Solve for x
    x = 193,591,792,429,016,640/500,373,548.32
  6. Step 6: Final answer
    x = 386,894,537.25

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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.