Home / 13,947,113.18-20,920,880.27-5,311,691.74

Finding the Fourth Proportional to 13,947,113.18, 20,920,880.27 and 5,311,691.74

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Solution

The fourth proportional to 13,947,113.18, 20,920,880.27 and 5,311,691.74 is: 7,967,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947,113.18 : 20,920,880.27 = 5,311,691.74 : x
  2. Step 2: Convert to fraction form
    13,947,113.18/20,920,880.27 = 5,311,691.74/x
  3. Step 3: Cross multiply
    13,947,113.18x = 20,920,880.27 × 5,311,691.74
  4. Step 4: Simplify right side
    13,947,113.18x = 111,125,266,963,118.30
  5. Step 5: Solve for x
    x = 111,125,266,963,118.30/13,947,113.18
  6. Step 6: Final answer
    x = 7,967,617.78

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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.