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Finding the Fourth Proportional to 8,208,003.68, 12,312,005.52 and 8,208,003.68

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Solution

The fourth proportional to 8,208,003.68, 12,312,005.52 and 8,208,003.68 is: 12,312,005.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208,003.68 : 12,312,005.52 = 8,208,003.68 : x
  2. Step 2: Convert to fraction form
    8,208,003.68/12,312,005.52 = 8,208,003.68/x
  3. Step 3: Cross multiply
    8,208,003.68x = 12,312,005.52 × 8,208,003.68
  4. Step 4: Simplify right side
    8,208,003.68x = 101,056,986,554,780.28
  5. Step 5: Solve for x
    x = 101,056,986,554,780.28/8,208,003.68
  6. Step 6: Final answer
    x = 12,312,005.52

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Double scale
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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.