Home / 25,165,287.40-37,691,943.90-20,686,311.40

Finding the Fourth Proportional to 25,165,287.40, 37,691,943.90 and 20,686,311.40

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Solution

The fourth proportional to 25,165,287.40, 37,691,943.90 and 20,686,311.40 is: 30,983,444.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,165,287.40 : 37,691,943.90 = 20,686,311.40 : x
  2. Step 2: Convert to fraction form
    25,165,287.40/37,691,943.90 = 20,686,311.40/x
  3. Step 3: Cross multiply
    25,165,287.40x = 37,691,943.90 × 20,686,311.40
  4. Step 4: Simplify right side
    25,165,287.40x = 779,707,288,786,730.38
  5. Step 5: Solve for x
    x = 779,707,288,786,730.38/25,165,287.40
  6. Step 6: Final answer
    x = 30,983,444.63

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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.