Home / 13,260,709.80-19,891,064.70-6,872,920.20

Finding the Fourth Proportional to 13,260,709.80, 19,891,064.70 and 6,872,920.20

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Solution

The fourth proportional to 13,260,709.80, 19,891,064.70 and 6,872,920.20 is: 10,309,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260,709.80 : 19,891,064.70 = 6,872,920.20 : x
  2. Step 2: Convert to fraction form
    13,260,709.80/19,891,064.70 = 6,872,920.20/x
  3. Step 3: Cross multiply
    13,260,709.80x = 19,891,064.70 × 6,872,920.20
  4. Step 4: Simplify right side
    13,260,709.80x = 136,709,700,376,136.94
  5. Step 5: Solve for x
    x = 136,709,700,376,136.94/13,260,709.80
  6. Step 6: Final answer
    x = 10,309,380.30

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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.