Home / 28,202,143.20-42,303,214.80-8,004,760.80

Finding the Fourth Proportional to 28,202,143.20, 42,303,214.80 and 8,004,760.80

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Solution

The fourth proportional to 28,202,143.20, 42,303,214.80 and 8,004,760.80 is: 12,007,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202,143.20 : 42,303,214.80 = 8,004,760.80 : x
  2. Step 2: Convert to fraction form
    28,202,143.20/42,303,214.80 = 8,004,760.80/x
  3. Step 3: Cross multiply
    28,202,143.20x = 42,303,214.80 × 8,004,760.80
  4. Step 4: Simplify right side
    28,202,143.20x = 338,627,115,545,019.81
  5. Step 5: Solve for x
    x = 338,627,115,545,019.81/28,202,143.20
  6. Step 6: Final answer
    x = 12,007,141.20

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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.