Home / 839,660,780.90-1,159,151,375.39-522,223,349.10

Finding the Fourth Proportional to 839,660,780.90, 1,159,151,375.39 and 522,223,349.10

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Solution

The fourth proportional to 839,660,780.90, 1,159,151,375.39 and 522,223,349.10 is: 720,929,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,660,780.90 : 1,159,151,375.39 = 522,223,349.10 : x
  2. Step 2: Convert to fraction form
    839,660,780.90/1,159,151,375.39 = 522,223,349.10/x
  3. Step 3: Cross multiply
    839,660,780.90x = 1,159,151,375.39 × 522,223,349.10
  4. Step 4: Simplify right side
    839,660,780.90x = 605,335,913,367,412,736
  5. Step 5: Solve for x
    x = 605,335,913,367,412,736/839,660,780.90
  6. Step 6: Final answer
    x = 720,929,126.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.