Home / 380,683,285.38-525,515,070.15-239,761,610.55

Finding the Fourth Proportional to 380,683,285.38, 525,515,070.15 and 239,761,610.55

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Solution

The fourth proportional to 380,683,285.38, 525,515,070.15 and 239,761,610.55 is: 330,979,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,683,285.38 : 525,515,070.15 = 239,761,610.55 : x
  2. Step 2: Convert to fraction form
    380,683,285.38/525,515,070.15 = 239,761,610.55/x
  3. Step 3: Cross multiply
    380,683,285.38x = 525,515,070.15 × 239,761,610.55
  4. Step 4: Simplify right side
    380,683,285.38x = 125,998,339,586,078,848
  5. Step 5: Solve for x
    x = 125,998,339,586,078,848/380,683,285.38
  6. Step 6: Final answer
    x = 330,979,437.30

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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.