Home / 13,891,400-20,829,023.30-5,256,166.42

Finding the Fourth Proportional to 13,891,400, 20,829,023.30 and 5,256,166.42

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Solution

The fourth proportional to 13,891,400, 20,829,023.30 and 5,256,166.42 is: 7,881,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891,400 : 20,829,023.30 = 5,256,166.42 : x
  2. Step 2: Convert to fraction form
    13,891,400/20,829,023.30 = 5,256,166.42/x
  3. Step 3: Cross multiply
    13,891,400x = 20,829,023.30 × 5,256,166.42
  4. Step 4: Simplify right side
    13,891,400x = 109,480,812,830,857.59
  5. Step 5: Solve for x
    x = 109,480,812,830,857.59/13,891,400
  6. Step 6: Final answer
    x = 7,881,193.60

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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.