Home / 645,038,919.96-890,229,280.44-366,622,294.52

Finding the Fourth Proportional to 645,038,919.96, 890,229,280.44 and 366,622,294.52

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Solution

The fourth proportional to 645,038,919.96, 890,229,280.44 and 366,622,294.52 is: 505,981,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,038,919.96 : 890,229,280.44 = 366,622,294.52 : x
  2. Step 2: Convert to fraction form
    645,038,919.96/890,229,280.44 = 366,622,294.52/x
  3. Step 3: Cross multiply
    645,038,919.96x = 890,229,280.44 × 366,622,294.52
  4. Step 4: Simplify right side
    645,038,919.96x = 326,377,901,443,801,344
  5. Step 5: Solve for x
    x = 326,377,901,443,801,344/645,038,919.96
  6. Step 6: Final answer
    x = 505,981,718.85

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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.