Home / 8,139,195.83-12,192,831.38-4,720,299.74

Finding the Fourth Proportional to 8,139,195.83, 12,192,831.38 and 4,720,299.74

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Solution

The fourth proportional to 8,139,195.83, 12,192,831.38 and 4,720,299.74 is: 7,071,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139,195.83 : 12,192,831.38 = 4,720,299.74 : x
  2. Step 2: Convert to fraction form
    8,139,195.83/12,192,831.38 = 4,720,299.74/x
  3. Step 3: Cross multiply
    8,139,195.83x = 12,192,831.38 × 4,720,299.74
  4. Step 4: Simplify right side
    8,139,195.83x = 57,553,818,789,437.55
  5. Step 5: Solve for x
    x = 57,553,818,789,437.55/8,139,195.83
  6. Step 6: Final answer
    x = 7,071,192.29

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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.