Home / 10,456,470.90-15,671,345.94-8,435,667.78

Finding the Fourth Proportional to 10,456,470.90, 15,671,345.94 and 8,435,667.78

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Solution

The fourth proportional to 10,456,470.90, 15,671,345.94 and 8,435,667.78 is: 12,642,723.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,456,470.90 : 15,671,345.94 = 8,435,667.78 : x
  2. Step 2: Convert to fraction form
    10,456,470.90/15,671,345.94 = 8,435,667.78/x
  3. Step 3: Cross multiply
    10,456,470.90x = 15,671,345.94 × 8,435,667.78
  4. Step 4: Simplify right side
    10,456,470.90x = 132,198,268,015,291.80
  5. Step 5: Solve for x
    x = 132,198,268,015,291.80/10,456,470.90
  6. Step 6: Final answer
    x = 12,642,723.27

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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.