Home / 394,656,147.20-591,984,220.80-388,609,529.60

Finding the Fourth Proportional to 394,656,147.20, 591,984,220.80 and 388,609,529.60

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Solution

The fourth proportional to 394,656,147.20, 591,984,220.80 and 388,609,529.60 is: 582,914,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,656,147.20 : 591,984,220.80 = 388,609,529.60 : x
  2. Step 2: Convert to fraction form
    394,656,147.20/591,984,220.80 = 388,609,529.60/x
  3. Step 3: Cross multiply
    394,656,147.20x = 591,984,220.80 × 388,609,529.60
  4. Step 4: Simplify right side
    394,656,147.20x = 230,050,709,575,710,528
  5. Step 5: Solve for x
    x = 230,050,709,575,710,528/394,656,147.20
  6. Step 6: Final answer
    x = 582,914,294.40

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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.