Home / 382,391,207.80-573,586,811.70-123,792,017.20

Finding the Fourth Proportional to 382,391,207.80, 573,586,811.70 and 123,792,017.20

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Solution

The fourth proportional to 382,391,207.80, 573,586,811.70 and 123,792,017.20 is: 185,688,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,391,207.80 : 573,586,811.70 = 123,792,017.20 : x
  2. Step 2: Convert to fraction form
    382,391,207.80/573,586,811.70 = 123,792,017.20/x
  3. Step 3: Cross multiply
    382,391,207.80x = 573,586,811.70 × 123,792,017.20
  4. Step 4: Simplify right side
    382,391,207.80x = 71,005,468,459,659,568
  5. Step 5: Solve for x
    x = 71,005,468,459,659,568/382,391,207.80
  6. Step 6: Final answer
    x = 185,688,025.80

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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.