Home / 388,447,359.13-536,051,099.15-212,231,569.69

Finding the Fourth Proportional to 388,447,359.13, 536,051,099.15 and 212,231,569.69

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Solution

The fourth proportional to 388,447,359.13, 536,051,099.15 and 212,231,569.69 is: 292,876,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,447,359.13 : 536,051,099.15 = 212,231,569.69 : x
  2. Step 2: Convert to fraction form
    388,447,359.13/536,051,099.15 = 212,231,569.69/x
  3. Step 3: Cross multiply
    388,447,359.13x = 536,051,099.15 × 212,231,569.69
  4. Step 4: Simplify right side
    388,447,359.13x = 113,766,966,205,593,168
  5. Step 5: Solve for x
    x = 113,766,966,205,593,168/388,447,359.13
  6. Step 6: Final answer
    x = 292,876,147.90

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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.