Home / 10,429,818.80-15,644,728.20-9,422,049.20

Finding the Fourth Proportional to 10,429,818.80, 15,644,728.20 and 9,422,049.20

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Solution

The fourth proportional to 10,429,818.80, 15,644,728.20 and 9,422,049.20 is: 14,133,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429,818.80 : 15,644,728.20 = 9,422,049.20 : x
  2. Step 2: Convert to fraction form
    10,429,818.80/15,644,728.20 = 9,422,049.20/x
  3. Step 3: Cross multiply
    10,429,818.80x = 15,644,728.20 × 9,422,049.20
  4. Step 4: Simplify right side
    10,429,818.80x = 147,405,398,821,027.41
  5. Step 5: Solve for x
    x = 147,405,398,821,027.41/10,429,818.80
  6. Step 6: Final answer
    x = 14,133,073.80

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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.