Home / 12,949,612.80-19,429,862.40-6,958,982.40

Finding the Fourth Proportional to 12,949,612.80, 19,429,862.40 and 6,958,982.40

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Solution

The fourth proportional to 12,949,612.80, 19,429,862.40 and 6,958,982.40 is: 10,441,398.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,612.80 : 19,429,862.40 = 6,958,982.40 : x
  2. Step 2: Convert to fraction form
    12,949,612.80/19,429,862.40 = 6,958,982.40/x
  3. Step 3: Cross multiply
    12,949,612.80x = 19,429,862.40 × 6,958,982.40
  4. Step 4: Simplify right side
    12,949,612.80x = 135,212,070,476,021.75
  5. Step 5: Solve for x
    x = 135,212,070,476,021.75/12,949,612.80
  6. Step 6: Final answer
    x = 10,441,398.72

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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.