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Finding the Fourth Proportional to 8,747,459.82, 12,071,499.74 and 4,879,980.97

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Solution

The fourth proportional to 8,747,459.82, 12,071,499.74 and 4,879,980.97 is: 6,734,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747,459.82 : 12,071,499.74 = 4,879,980.97 : x
  2. Step 2: Convert to fraction form
    8,747,459.82/12,071,499.74 = 4,879,980.97/x
  3. Step 3: Cross multiply
    8,747,459.82x = 12,071,499.74 × 4,879,980.97
  4. Step 4: Simplify right side
    8,747,459.82x = 58,908,689,010,559.95
  5. Step 5: Solve for x
    x = 58,908,689,010,559.95/8,747,459.82
  6. Step 6: Final answer
    x = 6,734,376.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.