Home / 25,243,712.80-37,890,452.40-12,478,631.20

Finding the Fourth Proportional to 25,243,712.80, 37,890,452.40 and 12,478,631.20

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Solution

The fourth proportional to 25,243,712.80, 37,890,452.40 and 12,478,631.20 is: 18,730,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,243,712.80 : 37,890,452.40 = 12,478,631.20 : x
  2. Step 2: Convert to fraction form
    25,243,712.80/37,890,452.40 = 12,478,631.20/x
  3. Step 3: Cross multiply
    25,243,712.80x = 37,890,452.40 × 12,478,631.20
  4. Step 4: Simplify right side
    25,243,712.80x = 472,820,981,500,754.81
  5. Step 5: Solve for x
    x = 472,820,981,500,754.81/25,243,712.80
  6. Step 6: Final answer
    x = 18,730,247.22

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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.