Home / 7,989,580.80-11,985,926.40-2,309,990.40

Finding the Fourth Proportional to 7,989,580.80, 11,985,926.40 and 2,309,990.40

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Solution

The fourth proportional to 7,989,580.80, 11,985,926.40 and 2,309,990.40 is: 3,465,435.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989,580.80 : 11,985,926.40 = 2,309,990.40 : x
  2. Step 2: Convert to fraction form
    7,989,580.80/11,985,926.40 = 2,309,990.40/x
  3. Step 3: Cross multiply
    7,989,580.80x = 11,985,926.40 × 2,309,990.40
  4. Step 4: Simplify right side
    7,989,580.80x = 27,687,374,919,106.56
  5. Step 5: Solve for x
    x = 27,687,374,919,106.56/7,989,580.80
  6. Step 6: Final answer
    x = 3,465,435.25

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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.