Home / 8,261,620.60-12,392,430.90-6,561,009.40

Finding the Fourth Proportional to 8,261,620.60, 12,392,430.90 and 6,561,009.40

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Solution

The fourth proportional to 8,261,620.60, 12,392,430.90 and 6,561,009.40 is: 9,841,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261,620.60 : 12,392,430.90 = 6,561,009.40 : x
  2. Step 2: Convert to fraction form
    8,261,620.60/12,392,430.90 = 6,561,009.40/x
  3. Step 3: Cross multiply
    8,261,620.60x = 12,392,430.90 × 6,561,009.40
  4. Step 4: Simplify right side
    8,261,620.60x = 81,306,855,623,750.47
  5. Step 5: Solve for x
    x = 81,306,855,623,750.47/8,261,620.60
  6. Step 6: Final answer
    x = 9,841,514.10

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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.