Home / 20,723,239.40-31,084,859.10-7,260,067.40

Finding the Fourth Proportional to 20,723,239.40, 31,084,859.10 and 7,260,067.40

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Solution

The fourth proportional to 20,723,239.40, 31,084,859.10 and 7,260,067.40 is: 10,890,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,239.40 : 31,084,859.10 = 7,260,067.40 : x
  2. Step 2: Convert to fraction form
    20,723,239.40/31,084,859.10 = 7,260,067.40/x
  3. Step 3: Cross multiply
    20,723,239.40x = 31,084,859.10 × 7,260,067.40
  4. Step 4: Simplify right side
    20,723,239.40x = 225,678,172,185,503.38
  5. Step 5: Solve for x
    x = 225,678,172,185,503.38/20,723,239.40
  6. Step 6: Final answer
    x = 10,890,101.10

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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.