Home / 27,991,141.92-38,627,955.16-15,602,020.92

Finding the Fourth Proportional to 27,991,141.92, 38,627,955.16 and 15,602,020.92

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Solution

The fourth proportional to 27,991,141.92, 38,627,955.16 and 15,602,020.92 is: 21,530,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991,141.92 : 38,627,955.16 = 15,602,020.92 : x
  2. Step 2: Convert to fraction form
    27,991,141.92/38,627,955.16 = 15,602,020.92/x
  3. Step 3: Cross multiply
    27,991,141.92x = 38,627,955.16 × 15,602,020.92
  4. Step 4: Simplify right side
    27,991,141.92x = 602,674,164,437,559.75
  5. Step 5: Solve for x
    x = 602,674,164,437,559.75/27,991,141.92
  6. Step 6: Final answer
    x = 21,530,888.81

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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.