Home / 20,734,112.20-31,078,358.70-7,264,006.60

Finding the Fourth Proportional to 20,734,112.20, 31,078,358.70 and 7,264,006.60

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Solution

The fourth proportional to 20,734,112.20, 31,078,358.70 and 7,264,006.60 is: 10,888,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,112.20 : 31,078,358.70 = 7,264,006.60 : x
  2. Step 2: Convert to fraction form
    20,734,112.20/31,078,358.70 = 7,264,006.60/x
  3. Step 3: Cross multiply
    20,734,112.20x = 31,078,358.70 × 7,264,006.60
  4. Step 4: Simplify right side
    20,734,112.20x = 225,753,402,713,967.41
  5. Step 5: Solve for x
    x = 225,753,402,713,967.41/20,734,112.20
  6. Step 6: Final answer
    x = 10,888,018.77

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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.