Home / 12,888,545.76-17,786,171.50-7,383,702.74

Finding the Fourth Proportional to 12,888,545.76, 17,786,171.50 and 7,383,702.74

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Solution

The fourth proportional to 12,888,545.76, 17,786,171.50 and 7,383,702.74 is: 10,189,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888,545.76 : 17,786,171.50 = 7,383,702.74 : x
  2. Step 2: Convert to fraction form
    12,888,545.76/17,786,171.50 = 7,383,702.74/x
  3. Step 3: Cross multiply
    12,888,545.76x = 17,786,171.50 × 7,383,702.74
  4. Step 4: Simplify right side
    12,888,545.76x = 131,327,803,131,269.80
  5. Step 5: Solve for x
    x = 131,327,803,131,269.80/12,888,545.76
  6. Step 6: Final answer
    x = 10,189,497.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.