Home / 13,729,449.73-20,626,331.70-12,953,865.72

Finding the Fourth Proportional to 13,729,449.73, 20,626,331.70 and 12,953,865.72

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Solution

The fourth proportional to 13,729,449.73, 20,626,331.70 and 12,953,865.72 is: 19,461,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,449.73 : 20,626,331.70 = 12,953,865.72 : x
  2. Step 2: Convert to fraction form
    13,729,449.73/20,626,331.70 = 12,953,865.72/x
  3. Step 3: Cross multiply
    13,729,449.73x = 20,626,331.70 × 12,953,865.72
  4. Step 4: Simplify right side
    13,729,449.73x = 267,190,731,038,577.25
  5. Step 5: Solve for x
    x = 267,190,731,038,577.25/13,729,449.73
  6. Step 6: Final answer
    x = 19,461,139.11

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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.