Home / 378,087,231.60-567,130,847.40-147,979,839.60

Finding the Fourth Proportional to 378,087,231.60, 567,130,847.40 and 147,979,839.60

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Solution

The fourth proportional to 378,087,231.60, 567,130,847.40 and 147,979,839.60 is: 221,969,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,087,231.60 : 567,130,847.40 = 147,979,839.60 : x
  2. Step 2: Convert to fraction form
    378,087,231.60/567,130,847.40 = 147,979,839.60/x
  3. Step 3: Cross multiply
    378,087,231.60x = 567,130,847.40 × 147,979,839.60
  4. Step 4: Simplify right side
    378,087,231.60x = 83,923,931,830,464,064
  5. Step 5: Solve for x
    x = 83,923,931,830,464,064/378,087,231.60
  6. Step 6: Final answer
    x = 221,969,759.40

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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.