Home / 388,103,614.60-582,155,421.90-356,358,872.20

Finding the Fourth Proportional to 388,103,614.60, 582,155,421.90 and 356,358,872.20

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Solution

The fourth proportional to 388,103,614.60, 582,155,421.90 and 356,358,872.20 is: 534,538,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,103,614.60 : 582,155,421.90 = 356,358,872.20 : x
  2. Step 2: Convert to fraction form
    388,103,614.60/582,155,421.90 = 356,358,872.20/x
  3. Step 3: Cross multiply
    388,103,614.60x = 582,155,421.90 × 356,358,872.20
  4. Step 4: Simplify right side
    388,103,614.60x = 207,456,249,593,399,168
  5. Step 5: Solve for x
    x = 207,456,249,593,399,168/388,103,614.60
  6. Step 6: Final answer
    x = 534,538,308.30

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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.