Home / 20,785,534.20-31,154,973.30-10,007,998.20

Finding the Fourth Proportional to 20,785,534.20, 31,154,973.30 and 10,007,998.20

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Solution

The fourth proportional to 20,785,534.20, 31,154,973.30 and 10,007,998.20 is: 15,000,765.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,534.20 : 31,154,973.30 = 10,007,998.20 : x
  2. Step 2: Convert to fraction form
    20,785,534.20/31,154,973.30 = 10,007,998.20/x
  3. Step 3: Cross multiply
    20,785,534.20x = 31,154,973.30 × 10,007,998.20
  4. Step 4: Simplify right side
    20,785,534.20x = 311,798,916,707,448.06
  5. Step 5: Solve for x
    x = 311,798,916,707,448.06/20,785,534.20
  6. Step 6: Final answer
    x = 15,000,765.13

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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.