Home / 655,921,972.64-905,172,520.92-358,565,516.48

Finding the Fourth Proportional to 655,921,972.64, 905,172,520.92 and 358,565,516.48

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Solution

The fourth proportional to 655,921,972.64, 905,172,520.92 and 358,565,516.48 is: 494,820,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,921,972.64 : 905,172,520.92 = 358,565,516.48 : x
  2. Step 2: Convert to fraction form
    655,921,972.64/905,172,520.92 = 358,565,516.48/x
  3. Step 3: Cross multiply
    655,921,972.64x = 905,172,520.92 × 358,565,516.48
  4. Step 4: Simplify right side
    655,921,972.64x = 324,563,652,467,183,424
  5. Step 5: Solve for x
    x = 324,563,652,467,183,424/655,921,972.64
  6. Step 6: Final answer
    x = 494,820,521.35

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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.