Home / 13,207,990.60-19,811,985.90-5,649,718.60

Finding the Fourth Proportional to 13,207,990.60, 19,811,985.90 and 5,649,718.60

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Solution

The fourth proportional to 13,207,990.60, 19,811,985.90 and 5,649,718.60 is: 8,474,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,990.60 : 19,811,985.90 = 5,649,718.60 : x
  2. Step 2: Convert to fraction form
    13,207,990.60/19,811,985.90 = 5,649,718.60/x
  3. Step 3: Cross multiply
    13,207,990.60x = 19,811,985.90 × 5,649,718.60
  4. Step 4: Simplify right side
    13,207,990.60x = 111,932,145,242,167.72
  5. Step 5: Solve for x
    x = 111,932,145,242,167.72/13,207,990.60
  6. Step 6: Final answer
    x = 8,474,577.90

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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.