Home / 13,486,557.20-20,229,835.80-7,817,853.20

Finding the Fourth Proportional to 13,486,557.20, 20,229,835.80 and 7,817,853.20

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Solution

The fourth proportional to 13,486,557.20, 20,229,835.80 and 7,817,853.20 is: 11,726,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,557.20 : 20,229,835.80 = 7,817,853.20 : x
  2. Step 2: Convert to fraction form
    13,486,557.20/20,229,835.80 = 7,817,853.20/x
  3. Step 3: Cross multiply
    13,486,557.20x = 20,229,835.80 × 7,817,853.20
  4. Step 4: Simplify right side
    13,486,557.20x = 158,153,886,544,504.56
  5. Step 5: Solve for x
    x = 158,153,886,544,504.56/13,486,557.20
  6. Step 6: Final answer
    x = 11,726,779.80

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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.