Home / 12,659,114.40-19,002,668.40-7,872,208.80

Finding the Fourth Proportional to 12,659,114.40, 19,002,668.40 and 7,872,208.80

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Solution

The fourth proportional to 12,659,114.40, 19,002,668.40 and 7,872,208.80 is: 11,817,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,114.40 : 19,002,668.40 = 7,872,208.80 : x
  2. Step 2: Convert to fraction form
    12,659,114.40/19,002,668.40 = 7,872,208.80/x
  3. Step 3: Cross multiply
    12,659,114.40x = 19,002,668.40 × 7,872,208.80
  4. Step 4: Simplify right side
    12,659,114.40x = 149,592,973,401,961.91
  5. Step 5: Solve for x
    x = 149,592,973,401,961.91/12,659,114.40
  6. Step 6: Final answer
    x = 11,817,017.26

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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.