Home / 12,442,687.80-18,664,031.70-5,251,831.80

Finding the Fourth Proportional to 12,442,687.80, 18,664,031.70 and 5,251,831.80

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Solution

The fourth proportional to 12,442,687.80, 18,664,031.70 and 5,251,831.80 is: 7,877,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442,687.80 : 18,664,031.70 = 5,251,831.80 : x
  2. Step 2: Convert to fraction form
    12,442,687.80/18,664,031.70 = 5,251,831.80/x
  3. Step 3: Cross multiply
    12,442,687.80x = 18,664,031.70 × 5,251,831.80
  4. Step 4: Simplify right side
    12,442,687.80x = 98,020,355,198,268.05
  5. Step 5: Solve for x
    x = 98,020,355,198,268.05/12,442,687.80
  6. Step 6: Final answer
    x = 7,877,747.70

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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.