Home / 20,610,020.80-30,915,031.20-7,146,848.80

Finding the Fourth Proportional to 20,610,020.80, 30,915,031.20 and 7,146,848.80

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Solution

The fourth proportional to 20,610,020.80, 30,915,031.20 and 7,146,848.80 is: 10,720,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610,020.80 : 30,915,031.20 = 7,146,848.80 : x
  2. Step 2: Convert to fraction form
    20,610,020.80/30,915,031.20 = 7,146,848.80/x
  3. Step 3: Cross multiply
    20,610,020.80x = 30,915,031.20 × 7,146,848.80
  4. Step 4: Simplify right side
    20,610,020.80x = 220,945,053,633,682.56
  5. Step 5: Solve for x
    x = 220,945,053,633,682.56/20,610,020.80
  6. Step 6: Final answer
    x = 10,720,273.20

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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.