Home / 21,886,104.06-30,187,159.80-15,361,189.56

Finding the Fourth Proportional to 21,886,104.06, 30,187,159.80 and 15,361,189.56

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Solution

The fourth proportional to 21,886,104.06, 30,187,159.80 and 15,361,189.56 is: 21,187,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886,104.06 : 30,187,159.80 = 15,361,189.56 : x
  2. Step 2: Convert to fraction form
    21,886,104.06/30,187,159.80 = 15,361,189.56/x
  3. Step 3: Cross multiply
    21,886,104.06x = 30,187,159.80 × 15,361,189.56
  4. Step 4: Simplify right side
    21,886,104.06x = 463,710,683,965,811.69
  5. Step 5: Solve for x
    x = 463,710,683,965,811.69/21,886,104.06
  6. Step 6: Final answer
    x = 21,187,447.65

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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.