Home / 12,767,077.80-19,168,331.40-7,984,108.80

Finding the Fourth Proportional to 12,767,077.80, 19,168,331.40 and 7,984,108.80

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Solution

The fourth proportional to 12,767,077.80, 19,168,331.40 and 7,984,108.80 is: 11,987,241.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767,077.80 : 19,168,331.40 = 7,984,108.80 : x
  2. Step 2: Convert to fraction form
    12,767,077.80/19,168,331.40 = 7,984,108.80/x
  3. Step 3: Cross multiply
    12,767,077.80x = 19,168,331.40 × 7,984,108.80
  4. Step 4: Simplify right side
    12,767,077.80x = 153,042,043,412,056.31
  5. Step 5: Solve for x
    x = 153,042,043,412,056.31/12,767,077.80
  6. Step 6: Final answer
    x = 11,987,241.39

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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.