Home / 252,660,077.70-378,990,116.55-143,443,047.30

Finding the Fourth Proportional to 252,660,077.70, 378,990,116.55 and 143,443,047.30

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Solution

The fourth proportional to 252,660,077.70, 378,990,116.55 and 143,443,047.30 is: 215,164,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,660,077.70 : 378,990,116.55 = 143,443,047.30 : x
  2. Step 2: Convert to fraction form
    252,660,077.70/378,990,116.55 = 143,443,047.30/x
  3. Step 3: Cross multiply
    252,660,077.70x = 378,990,116.55 × 143,443,047.30
  4. Step 4: Simplify right side
    252,660,077.70x = 54,363,497,214,514,168
  5. Step 5: Solve for x
    x = 54,363,497,214,514,168/252,660,077.70
  6. Step 6: Final answer
    x = 215,164,570.95

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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.