Home / 15,551,999.70-23,327,999.55-7,979,730.90

Finding the Fourth Proportional to 15,551,999.70, 23,327,999.55 and 7,979,730.90

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Solution

The fourth proportional to 15,551,999.70, 23,327,999.55 and 7,979,730.90 is: 11,969,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551,999.70 : 23,327,999.55 = 7,979,730.90 : x
  2. Step 2: Convert to fraction form
    15,551,999.70/23,327,999.55 = 7,979,730.90/x
  3. Step 3: Cross multiply
    15,551,999.70x = 23,327,999.55 × 7,979,730.90
  4. Step 4: Simplify right side
    15,551,999.70x = 186,151,158,844,321.12
  5. Step 5: Solve for x
    x = 186,151,158,844,321.12/15,551,999.70
  6. Step 6: Final answer
    x = 11,969,596.35

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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.