Home / 20,609,764.80-30,914,647.20-7,146,592.80

Finding the Fourth Proportional to 20,609,764.80, 30,914,647.20 and 7,146,592.80

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Solution

The fourth proportional to 20,609,764.80, 30,914,647.20 and 7,146,592.80 is: 10,719,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,764.80 : 30,914,647.20 = 7,146,592.80 : x
  2. Step 2: Convert to fraction form
    20,609,764.80/30,914,647.20 = 7,146,592.80/x
  3. Step 3: Cross multiply
    20,609,764.80x = 30,914,647.20 × 7,146,592.80
  4. Step 4: Simplify right side
    20,609,764.80x = 220,934,395,094,060.16
  5. Step 5: Solve for x
    x = 220,934,395,094,060.16/20,609,764.80
  6. Step 6: Final answer
    x = 10,719,889.20

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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.