Home / 12,514,138.80-18,757,211.40-7,125,370.80

Finding the Fourth Proportional to 12,514,138.80, 18,757,211.40 and 7,125,370.80

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Solution

The fourth proportional to 12,514,138.80, 18,757,211.40 and 7,125,370.80 is: 10,680,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,514,138.80 : 18,757,211.40 = 7,125,370.80 : x
  2. Step 2: Convert to fraction form
    12,514,138.80/18,757,211.40 = 7,125,370.80/x
  3. Step 3: Cross multiply
    12,514,138.80x = 18,757,211.40 × 7,125,370.80
  4. Step 4: Simplify right side
    12,514,138.80x = 133,652,086,398,987.11
  5. Step 5: Solve for x
    x = 133,652,086,398,987.11/12,514,138.80
  6. Step 6: Final answer
    x = 10,680,086.62

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1.5x scale

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.