Home / 20,172,423.80-30,240,264.90-7,389,846.20

Finding the Fourth Proportional to 20,172,423.80, 30,240,264.90 and 7,389,846.20

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Solution

The fourth proportional to 20,172,423.80, 30,240,264.90 and 7,389,846.20 is: 11,078,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172,423.80 : 30,240,264.90 = 7,389,846.20 : x
  2. Step 2: Convert to fraction form
    20,172,423.80/30,240,264.90 = 7,389,846.20/x
  3. Step 3: Cross multiply
    20,172,423.80x = 30,240,264.90 × 7,389,846.20
  4. Step 4: Simplify right side
    20,172,423.80x = 223,470,906,658,258.38
  5. Step 5: Solve for x
    x = 223,470,906,658,258.38/20,172,423.80
  6. Step 6: Final answer
    x = 11,078,039.45

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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.