Home / 14,346,747.95-21,428,687.30-12,978,416.57

Finding the Fourth Proportional to 14,346,747.95, 21,428,687.30 and 12,978,416.57

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Solution

The fourth proportional to 14,346,747.95, 21,428,687.30 and 12,978,416.57 is: 19,384,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346,747.95 : 21,428,687.30 = 12,978,416.57 : x
  2. Step 2: Convert to fraction form
    14,346,747.95/21,428,687.30 = 12,978,416.57/x
  3. Step 3: Cross multiply
    14,346,747.95x = 21,428,687.30 × 12,978,416.57
  4. Step 4: Simplify right side
    14,346,747.95x = 278,110,430,155,633.06
  5. Step 5: Solve for x
    x = 278,110,430,155,633.06/14,346,747.95
  6. Step 6: Final answer
    x = 19,384,910.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.