Home / 388,512,007.20-582,754,532.40-97,381,677.60

Finding the Fourth Proportional to 388,512,007.20, 582,754,532.40 and 97,381,677.60

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Solution

The fourth proportional to 388,512,007.20, 582,754,532.40 and 97,381,677.60 is: 146,069,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,512,007.20 : 582,754,532.40 = 97,381,677.60 : x
  2. Step 2: Convert to fraction form
    388,512,007.20/582,754,532.40 = 97,381,677.60/x
  3. Step 3: Cross multiply
    388,512,007.20x = 582,754,532.40 × 97,381,677.60
  4. Step 4: Simplify right side
    388,512,007.20x = 56,749,613,994,115,552
  5. Step 5: Solve for x
    x = 56,749,613,994,115,552/388,512,007.20
  6. Step 6: Final answer
    x = 146,069,138.00

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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.