Home / 512,489,193.02-769,960,168.59-328,616,916.47

Finding the Fourth Proportional to 512,489,193.02, 769,960,168.59 and 328,616,916.47

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Solution

The fourth proportional to 512,489,193.02, 769,960,168.59 and 328,616,916.47 is: 493,711,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,489,193.02 : 769,960,168.59 = 328,616,916.47 : x
  2. Step 2: Convert to fraction form
    512,489,193.02/769,960,168.59 = 328,616,916.47/x
  3. Step 3: Cross multiply
    512,489,193.02x = 769,960,168.59 × 328,616,916.47
  4. Step 4: Simplify right side
    512,489,193.02x = 253,021,936,406,767,168
  5. Step 5: Solve for x
    x = 253,021,936,406,767,168/512,489,193.02
  6. Step 6: Final answer
    x = 493,711,750.13

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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.