Home / 21,047,770.13-29,045,922.78-11,389,978.13

Finding the Fourth Proportional to 21,047,770.13, 29,045,922.78 and 11,389,978.13

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Solution

The fourth proportional to 21,047,770.13, 29,045,922.78 and 11,389,978.13 is: 15,718,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047,770.13 : 29,045,922.78 = 11,389,978.13 : x
  2. Step 2: Convert to fraction form
    21,047,770.13/29,045,922.78 = 11,389,978.13/x
  3. Step 3: Cross multiply
    21,047,770.13x = 29,045,922.78 × 11,389,978.13
  4. Step 4: Simplify right side
    21,047,770.13x = 330,832,425,229,868.81
  5. Step 5: Solve for x
    x = 330,832,425,229,868.81/21,047,770.13
  6. Step 6: Final answer
    x = 15,718,169.82

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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.