Home / 388,078,380.80-581,267,265.60-344,996,230.40

Finding the Fourth Proportional to 388,078,380.80, 581,267,265.60 and 344,996,230.40

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Solution

The fourth proportional to 388,078,380.80, 581,267,265.60 and 344,996,230.40 is: 516,738,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,078,380.80 : 581,267,265.60 = 344,996,230.40 : x
  2. Step 2: Convert to fraction form
    388,078,380.80/581,267,265.60 = 344,996,230.40/x
  3. Step 3: Cross multiply
    388,078,380.80x = 581,267,265.60 × 344,996,230.40
  4. Step 4: Simplify right side
    388,078,380.80x = 200,535,015,486,915,584
  5. Step 5: Solve for x
    x = 200,535,015,486,915,584/388,078,380.80
  6. Step 6: Final answer
    x = 516,738,435.86

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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.