Home / 13,989,117.80-20,977,455.90-6,418,404.20

Finding the Fourth Proportional to 13,989,117.80, 20,977,455.90 and 6,418,404.20

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Solution

The fourth proportional to 13,989,117.80, 20,977,455.90 and 6,418,404.20 is: 9,624,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989,117.80 : 20,977,455.90 = 6,418,404.20 : x
  2. Step 2: Convert to fraction form
    13,989,117.80/20,977,455.90 = 6,418,404.20/x
  3. Step 3: Cross multiply
    13,989,117.80x = 20,977,455.90 × 6,418,404.20
  4. Step 4: Simplify right side
    13,989,117.80x = 134,641,791,053,874.78
  5. Step 5: Solve for x
    x = 134,641,791,053,874.78/13,989,117.80
  6. Step 6: Final answer
    x = 9,624,752.11

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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.