Home / 372,491,120.12-513,956,676.30-225,849,445.88

Finding the Fourth Proportional to 372,491,120.12, 513,956,676.30 and 225,849,445.88

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Solution

The fourth proportional to 372,491,120.12, 513,956,676.30 and 225,849,445.88 is: 311,623,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,491,120.12 : 513,956,676.30 = 225,849,445.88 : x
  2. Step 2: Convert to fraction form
    372,491,120.12/513,956,676.30 = 225,849,445.88/x
  3. Step 3: Cross multiply
    372,491,120.12x = 513,956,676.30 × 225,849,445.88
  4. Step 4: Simplify right side
    372,491,120.12x = 116,076,830,548,681,536
  5. Step 5: Solve for x
    x = 116,076,830,548,681,536/372,491,120.12
  6. Step 6: Final answer
    x = 311,623,081.14

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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.