Home / 209,969,309.70-314,953,964.55-198,065,031.30

Finding the Fourth Proportional to 209,969,309.70, 314,953,964.55 and 198,065,031.30

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Solution

The fourth proportional to 209,969,309.70, 314,953,964.55 and 198,065,031.30 is: 297,097,546.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,969,309.70 : 314,953,964.55 = 198,065,031.30 : x
  2. Step 2: Convert to fraction form
    209,969,309.70/314,953,964.55 = 198,065,031.30/x
  3. Step 3: Cross multiply
    209,969,309.70x = 314,953,964.55 × 198,065,031.30
  4. Step 4: Simplify right side
    209,969,309.70x = 62,381,366,846,654,848
  5. Step 5: Solve for x
    x = 62,381,366,846,654,848/209,969,309.70
  6. Step 6: Final answer
    x = 297,097,546.95

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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.