Home / 8,501,421.60-12,752,132.40-8,170,747.20

Finding the Fourth Proportional to 8,501,421.60, 12,752,132.40 and 8,170,747.20

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Solution

The fourth proportional to 8,501,421.60, 12,752,132.40 and 8,170,747.20 is: 12,256,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501,421.60 : 12,752,132.40 = 8,170,747.20 : x
  2. Step 2: Convert to fraction form
    8,501,421.60/12,752,132.40 = 8,170,747.20/x
  3. Step 3: Cross multiply
    8,501,421.60x = 12,752,132.40 × 8,170,747.20
  4. Step 4: Simplify right side
    8,501,421.60x = 104,194,450,101,329.28
  5. Step 5: Solve for x
    x = 104,194,450,101,329.28/8,501,421.60
  6. Step 6: Final answer
    x = 12,256,120.80

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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.