Home / 13,906,990.90-19,191,616.68-7,711,884.55

Finding the Fourth Proportional to 13,906,990.90, 19,191,616.68 and 7,711,884.55

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Solution

The fourth proportional to 13,906,990.90, 19,191,616.68 and 7,711,884.55 is: 10,642,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906,990.90 : 19,191,616.68 = 7,711,884.55 : x
  2. Step 2: Convert to fraction form
    13,906,990.90/19,191,616.68 = 7,711,884.55/x
  3. Step 3: Cross multiply
    13,906,990.90x = 19,191,616.68 × 7,711,884.55
  4. Step 4: Simplify right side
    13,906,990.90x = 148,003,532,164,014.28
  5. Step 5: Solve for x
    x = 148,003,532,164,014.28/13,906,990.90
  6. Step 6: Final answer
    x = 10,642,383.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.