Home / 12,357,966.30-18,536,949.45-7,314,971.10

Finding the Fourth Proportional to 12,357,966.30, 18,536,949.45 and 7,314,971.10

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Solution

The fourth proportional to 12,357,966.30, 18,536,949.45 and 7,314,971.10 is: 10,972,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,966.30 : 18,536,949.45 = 7,314,971.10 : x
  2. Step 2: Convert to fraction form
    12,357,966.30/18,536,949.45 = 7,314,971.10/x
  3. Step 3: Cross multiply
    12,357,966.30x = 18,536,949.45 × 7,314,971.10
  4. Step 4: Simplify right side
    12,357,966.30x = 135,597,249,508,910.88
  5. Step 5: Solve for x
    x = 135,597,249,508,910.88/12,357,966.30
  6. Step 6: Final answer
    x = 10,972,456.65

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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.