Home / 14,507,942.92-20,020,961.10-7,981,432.32

Finding the Fourth Proportional to 14,507,942.92, 20,020,961.10 and 7,981,432.32

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Solution

The fourth proportional to 14,507,942.92, 20,020,961.10 and 7,981,432.32 is: 11,014,376.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507,942.92 : 20,020,961.10 = 7,981,432.32 : x
  2. Step 2: Convert to fraction form
    14,507,942.92/20,020,961.10 = 7,981,432.32/x
  3. Step 3: Cross multiply
    14,507,942.92x = 20,020,961.10 × 7,981,432.32
  4. Step 4: Simplify right side
    14,507,942.92x = 159,795,946,001,002.78
  5. Step 5: Solve for x
    x = 159,795,946,001,002.78/14,507,942.92
  6. Step 6: Final answer
    x = 11,014,376.53

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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.