Home / 13,779,908.70-20,669,863.05-4,195,211.10

Finding the Fourth Proportional to 13,779,908.70, 20,669,863.05 and 4,195,211.10

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Solution

The fourth proportional to 13,779,908.70, 20,669,863.05 and 4,195,211.10 is: 6,292,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,908.70 : 20,669,863.05 = 4,195,211.10 : x
  2. Step 2: Convert to fraction form
    13,779,908.70/20,669,863.05 = 4,195,211.10/x
  3. Step 3: Cross multiply
    13,779,908.70x = 20,669,863.05 × 4,195,211.10
  4. Step 4: Simplify right side
    13,779,908.70x = 86,714,438,902,839.84
  5. Step 5: Solve for x
    x = 86,714,438,902,839.84/13,779,908.70
  6. Step 6: Final answer
    x = 6,292,816.65

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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.