Home / 8,985,916.89-12,399,179.63-5,117,944.95

Finding the Fourth Proportional to 8,985,916.89, 12,399,179.63 and 5,117,944.95

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Solution

The fourth proportional to 8,985,916.89, 12,399,179.63 and 5,117,944.95 is: 7,061,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985,916.89 : 12,399,179.63 = 5,117,944.95 : x
  2. Step 2: Convert to fraction form
    8,985,916.89/12,399,179.63 = 5,117,944.95/x
  3. Step 3: Cross multiply
    8,985,916.89x = 12,399,179.63 × 5,117,944.95
  4. Step 4: Simplify right side
    8,985,916.89x = 63,458,318,745,911.65
  5. Step 5: Solve for x
    x = 63,458,318,745,911.65/8,985,916.89
  6. Step 6: Final answer
    x = 7,061,974.81

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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.