Home / 13,889,374.71-20,817,265.91-7,154,114.55

Finding the Fourth Proportional to 13,889,374.71, 20,817,265.91 and 7,154,114.55

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Solution

The fourth proportional to 13,889,374.71, 20,817,265.91 and 7,154,114.55 is: 10,722,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889,374.71 : 20,817,265.91 = 7,154,114.55 : x
  2. Step 2: Convert to fraction form
    13,889,374.71/20,817,265.91 = 7,154,114.55/x
  3. Step 3: Cross multiply
    13,889,374.71x = 20,817,265.91 × 7,154,114.55
  4. Step 4: Simplify right side
    13,889,374.71x = 148,929,104,902,179.44
  5. Step 5: Solve for x
    x = 148,929,104,902,179.44/13,889,374.71
  6. Step 6: Final answer
    x = 10,722,520.49

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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.