Home / 21,004,576.20-31,506,864.30-8,220,832.20

Finding the Fourth Proportional to 21,004,576.20, 31,506,864.30 and 8,220,832.20

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Solution

The fourth proportional to 21,004,576.20, 31,506,864.30 and 8,220,832.20 is: 12,331,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,576.20 : 31,506,864.30 = 8,220,832.20 : x
  2. Step 2: Convert to fraction form
    21,004,576.20/31,506,864.30 = 8,220,832.20/x
  3. Step 3: Cross multiply
    21,004,576.20x = 31,506,864.30 × 8,220,832.20
  4. Step 4: Simplify right side
    21,004,576.20x = 259,012,644,558,470.47
  5. Step 5: Solve for x
    x = 259,012,644,558,470.47/21,004,576.20
  6. Step 6: Final answer
    x = 12,331,248.30

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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.