Home / 13,989,118.30-20,977,456.65-6,418,404.70

Finding the Fourth Proportional to 13,989,118.30, 20,977,456.65 and 6,418,404.70

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Solution

The fourth proportional to 13,989,118.30, 20,977,456.65 and 6,418,404.70 is: 9,624,752.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989,118.30 : 20,977,456.65 = 6,418,404.70 : x
  2. Step 2: Convert to fraction form
    13,989,118.30/20,977,456.65 = 6,418,404.70/x
  3. Step 3: Cross multiply
    13,989,118.30x = 20,977,456.65 × 6,418,404.70
  4. Step 4: Simplify right side
    13,989,118.30x = 134,641,806,356,406.25
  5. Step 5: Solve for x
    x = 134,641,806,356,406.25/13,989,118.30
  6. Step 6: Final answer
    x = 9,624,752.86

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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.