Home / 20,510,945.70-30,747,172.95-7,740,032.10

Finding the Fourth Proportional to 20,510,945.70, 30,747,172.95 and 7,740,032.10

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Solution

The fourth proportional to 20,510,945.70, 30,747,172.95 and 7,740,032.10 is: 11,602,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510,945.70 : 30,747,172.95 = 7,740,032.10 : x
  2. Step 2: Convert to fraction form
    20,510,945.70/30,747,172.95 = 7,740,032.10/x
  3. Step 3: Cross multiply
    20,510,945.70x = 30,747,172.95 × 7,740,032.10
  4. Step 4: Simplify right side
    20,510,945.70x = 237,984,105,617,251.69
  5. Step 5: Solve for x
    x = 237,984,105,617,251.69/20,510,945.70
  6. Step 6: Final answer
    x = 11,602,785.61

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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.