Home / 13,218,003.38-18,240,991.65-7,338,035.18

Finding the Fourth Proportional to 13,218,003.38, 18,240,991.65 and 7,338,035.18

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Solution

The fourth proportional to 13,218,003.38, 18,240,991.65 and 7,338,035.18 is: 10,126,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218,003.38 : 18,240,991.65 = 7,338,035.18 : x
  2. Step 2: Convert to fraction form
    13,218,003.38/18,240,991.65 = 7,338,035.18/x
  3. Step 3: Cross multiply
    13,218,003.38x = 18,240,991.65 × 7,338,035.18
  4. Step 4: Simplify right side
    13,218,003.38x = 133,853,038,409,096.06
  5. Step 5: Solve for x
    x = 133,853,038,409,096.06/13,218,003.38
  6. Step 6: Final answer
    x = 10,126,570.15

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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.