Home / 8,320,575.40-12,480,863.10-7,760,703.40

Finding the Fourth Proportional to 8,320,575.40, 12,480,863.10 and 7,760,703.40

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Solution

The fourth proportional to 8,320,575.40, 12,480,863.10 and 7,760,703.40 is: 11,641,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,575.40 : 12,480,863.10 = 7,760,703.40 : x
  2. Step 2: Convert to fraction form
    8,320,575.40/12,480,863.10 = 7,760,703.40/x
  3. Step 3: Cross multiply
    8,320,575.40x = 12,480,863.10 × 7,760,703.40
  4. Step 4: Simplify right side
    8,320,575.40x = 96,860,276,695,104.55
  5. Step 5: Solve for x
    x = 96,860,276,695,104.55/8,320,575.40
  6. Step 6: Final answer
    x = 11,641,055.10

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Similar ratio
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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.