Home / 655,712,890.80-983,569,336.20-329,195,540.40

Finding the Fourth Proportional to 655,712,890.80, 983,569,336.20 and 329,195,540.40

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Solution

The fourth proportional to 655,712,890.80, 983,569,336.20 and 329,195,540.40 is: 493,793,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,712,890.80 : 983,569,336.20 = 329,195,540.40 : x
  2. Step 2: Convert to fraction form
    655,712,890.80/983,569,336.20 = 329,195,540.40/x
  3. Step 3: Cross multiply
    655,712,890.80x = 983,569,336.20 × 329,195,540.40
  4. Step 4: Simplify right side
    655,712,890.80x = 323,786,639,151,228,288
  5. Step 5: Solve for x
    x = 323,786,639,151,228,288/655,712,890.80
  6. Step 6: Final answer
    x = 493,793,310.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.