Home / 7,929,399.80-11,894,099.70-7,519,993.40

Finding the Fourth Proportional to 7,929,399.80, 11,894,099.70 and 7,519,993.40

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Solution

The fourth proportional to 7,929,399.80, 11,894,099.70 and 7,519,993.40 is: 11,279,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929,399.80 : 11,894,099.70 = 7,519,993.40 : x
  2. Step 2: Convert to fraction form
    7,929,399.80/11,894,099.70 = 7,519,993.40/x
  3. Step 3: Cross multiply
    7,929,399.80x = 11,894,099.70 × 7,519,993.40
  4. Step 4: Simplify right side
    7,929,399.80x = 89,443,551,242,941.98
  5. Step 5: Solve for x
    x = 89,443,551,242,941.98/7,929,399.80
  6. Step 6: Final answer
    x = 11,279,990.10

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1.5x scale

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.