Home / 388,454,985.60-582,682,478.40-101,240,649.60

Finding the Fourth Proportional to 388,454,985.60, 582,682,478.40 and 101,240,649.60

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Solution

The fourth proportional to 388,454,985.60, 582,682,478.40 and 101,240,649.60 is: 151,860,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,454,985.60 : 582,682,478.40 = 101,240,649.60 : x
  2. Step 2: Convert to fraction form
    388,454,985.60/582,682,478.40 = 101,240,649.60/x
  3. Step 3: Cross multiply
    388,454,985.60x = 582,682,478.40 × 101,240,649.60
  4. Step 4: Simplify right side
    388,454,985.60x = 58,991,152,623,753,960
  5. Step 5: Solve for x
    x = 58,991,152,623,753,960/388,454,985.60
  6. Step 6: Final answer
    x = 151,860,974.40

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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.