Home / 20,785,532.20-31,154,970.30-10,007,996.20

Finding the Fourth Proportional to 20,785,532.20, 31,154,970.30 and 10,007,996.20

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Solution

The fourth proportional to 20,785,532.20, 31,154,970.30 and 10,007,996.20 is: 15,000,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,532.20 : 31,154,970.30 = 10,007,996.20 : x
  2. Step 2: Convert to fraction form
    20,785,532.20/31,154,970.30 = 10,007,996.20/x
  3. Step 3: Cross multiply
    20,785,532.20x = 31,154,970.30 × 10,007,996.20
  4. Step 4: Simplify right side
    20,785,532.20x = 311,798,824,373,512.88
  5. Step 5: Solve for x
    x = 311,798,824,373,512.88/20,785,532.20
  6. Step 6: Final answer
    x = 15,000,762.13

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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.