Home / 13,889,378.96-20,817,272.24-7,154,118.80

Finding the Fourth Proportional to 13,889,378.96, 20,817,272.24 and 7,154,118.80

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Solution

The fourth proportional to 13,889,378.96, 20,817,272.24 and 7,154,118.80 is: 10,722,526.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889,378.96 : 20,817,272.24 = 7,154,118.80 : x
  2. Step 2: Convert to fraction form
    13,889,378.96/20,817,272.24 = 7,154,118.80/x
  3. Step 3: Cross multiply
    13,889,378.96x = 20,817,272.24 × 7,154,118.80
  4. Step 4: Simplify right side
    13,889,378.96x = 148,929,238,696,902.09
  5. Step 5: Solve for x
    x = 148,929,238,696,902.09/13,889,378.96
  6. Step 6: Final answer
    x = 10,722,526.84

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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.