Home / 14,507,940.92-20,020,958.35-7,981,430.32

Finding the Fourth Proportional to 14,507,940.92, 20,020,958.35 and 7,981,430.32

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Solution

The fourth proportional to 14,507,940.92, 20,020,958.35 and 7,981,430.32 is: 11,014,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507,940.92 : 20,020,958.35 = 7,981,430.32 : x
  2. Step 2: Convert to fraction form
    14,507,940.92/20,020,958.35 = 7,981,430.32/x
  3. Step 3: Cross multiply
    14,507,940.92x = 20,020,958.35 × 7,981,430.32
  4. Step 4: Simplify right side
    14,507,940.92x = 159,795,883,940,141.19
  5. Step 5: Solve for x
    x = 159,795,883,940,141.19/14,507,940.92
  6. Step 6: Final answer
    x = 11,014,373.77

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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.