Home / 13,971,258.90-20,956,888.35-13,309,910.10

Finding the Fourth Proportional to 13,971,258.90, 20,956,888.35 and 13,309,910.10

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Solution

The fourth proportional to 13,971,258.90, 20,956,888.35 and 13,309,910.10 is: 19,964,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971,258.90 : 20,956,888.35 = 13,309,910.10 : x
  2. Step 2: Convert to fraction form
    13,971,258.90/20,956,888.35 = 13,309,910.10/x
  3. Step 3: Cross multiply
    13,971,258.90x = 20,956,888.35 × 13,309,910.10
  4. Step 4: Simplify right side
    13,971,258.90x = 278,934,299,914,237.34
  5. Step 5: Solve for x
    x = 278,934,299,914,237.34/13,971,258.90
  6. Step 6: Final answer
    x = 19,964,865.15

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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.