Home / 384,609,909.80-576,914,864.70-111,989,570.60

Finding the Fourth Proportional to 384,609,909.80, 576,914,864.70 and 111,989,570.60

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Solution

The fourth proportional to 384,609,909.80, 576,914,864.70 and 111,989,570.60 is: 167,984,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,609,909.80 : 576,914,864.70 = 111,989,570.60 : x
  2. Step 2: Convert to fraction form
    384,609,909.80/576,914,864.70 = 111,989,570.60/x
  3. Step 3: Cross multiply
    384,609,909.80x = 576,914,864.70 × 111,989,570.60
  4. Step 4: Simplify right side
    384,609,909.80x = 64,608,447,970,510,096
  5. Step 5: Solve for x
    x = 64,608,447,970,510,096/384,609,909.80
  6. Step 6: Final answer
    x = 167,984,355.90

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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.