Home / 512,489,225.41-769,960,217.59-328,616,948.90

Finding the Fourth Proportional to 512,489,225.41, 769,960,217.59 and 328,616,948.90

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Solution

The fourth proportional to 512,489,225.41, 769,960,217.59 and 328,616,948.90 is: 493,711,799.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,489,225.41 : 769,960,217.59 = 328,616,948.90 : x
  2. Step 2: Convert to fraction form
    512,489,225.41/769,960,217.59 = 328,616,948.90/x
  3. Step 3: Cross multiply
    512,489,225.41x = 769,960,217.59 × 328,616,948.90
  4. Step 4: Simplify right side
    512,489,225.41x = 253,021,977,479,909,248
  5. Step 5: Solve for x
    x = 253,021,977,479,909,248/512,489,225.41
  6. Step 6: Final answer
    x = 493,711,799.07

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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.