Home / 372,811,856.90-559,275,245.78-127,111,031.30

Finding the Fourth Proportional to 372,811,856.90, 559,275,245.78 and 127,111,031.30

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Solution

The fourth proportional to 372,811,856.90, 559,275,245.78 and 127,111,031.30 is: 190,686,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,811,856.90 : 559,275,245.78 = 127,111,031.30 : x
  2. Step 2: Convert to fraction form
    372,811,856.90/559,275,245.78 = 127,111,031.30/x
  3. Step 3: Cross multiply
    372,811,856.90x = 559,275,245.78 × 127,111,031.30
  4. Step 4: Simplify right side
    372,811,856.90x = 71,090,053,272,419,400
  5. Step 5: Solve for x
    x = 71,090,053,272,419,400/372,811,856.90
  6. Step 6: Final answer
    x = 190,686,138.22

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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.