Home / 13,806,806.52-20,713,199-5,287,143.36

Finding the Fourth Proportional to 13,806,806.52, 20,713,199 and 5,287,143.36

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Solution

The fourth proportional to 13,806,806.52, 20,713,199 and 5,287,143.36 is: 7,931,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806,806.52 : 20,713,199 = 5,287,143.36 : x
  2. Step 2: Convert to fraction form
    13,806,806.52/20,713,199 = 5,287,143.36/x
  3. Step 3: Cross multiply
    13,806,806.52x = 20,713,199 × 5,287,143.36
  4. Step 4: Simplify right side
    13,806,806.52x = 109,513,652,557,208.64
  5. Step 5: Solve for x
    x = 109,513,652,557,208.64/13,806,806.52
  6. Step 6: Final answer
    x = 7,931,859.72

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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.