Home / 12,156,681.10-18,235,021.65-10,980,949.90

Finding the Fourth Proportional to 12,156,681.10, 18,235,021.65 and 10,980,949.90

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Solution

The fourth proportional to 12,156,681.10, 18,235,021.65 and 10,980,949.90 is: 16,471,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156,681.10 : 18,235,021.65 = 10,980,949.90 : x
  2. Step 2: Convert to fraction form
    12,156,681.10/18,235,021.65 = 10,980,949.90/x
  3. Step 3: Cross multiply
    12,156,681.10x = 18,235,021.65 × 10,980,949.90
  4. Step 4: Simplify right side
    12,156,681.10x = 200,237,859,164,065.31
  5. Step 5: Solve for x
    x = 200,237,859,164,065.31/12,156,681.10
  6. Step 6: Final answer
    x = 16,471,424.85

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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.