Home / 647,689,580.61-971,537,217.15-205,034,434.90

Finding the Fourth Proportional to 647,689,580.61, 971,537,217.15 and 205,034,434.90

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Solution

The fourth proportional to 647,689,580.61, 971,537,217.15 and 205,034,434.90 is: 307,552,553.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,689,580.61 : 971,537,217.15 = 205,034,434.90 : x
  2. Step 2: Convert to fraction form
    647,689,580.61/971,537,217.15 = 205,034,434.90/x
  3. Step 3: Cross multiply
    647,689,580.61x = 971,537,217.15 × 205,034,434.90
  4. Step 4: Simplify right side
    647,689,580.61x = 199,198,584,302,668,832
  5. Step 5: Solve for x
    x = 199,198,584,302,668,832/647,689,580.61
  6. Step 6: Final answer
    x = 307,552,553.36

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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.