Home / 21,389,769.57-29,517,681.11-11,600,429.79

Finding the Fourth Proportional to 21,389,769.57, 29,517,681.11 and 11,600,429.79

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Solution

The fourth proportional to 21,389,769.57, 29,517,681.11 and 11,600,429.79 is: 16,008,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389,769.57 : 29,517,681.11 = 11,600,429.79 : x
  2. Step 2: Convert to fraction form
    21,389,769.57/29,517,681.11 = 11,600,429.79/x
  3. Step 3: Cross multiply
    21,389,769.57x = 29,517,681.11 × 11,600,429.79
  4. Step 4: Simplify right side
    21,389,769.57x = 342,417,787,222,162.12
  5. Step 5: Solve for x
    x = 342,417,787,222,162.12/21,389,769.57
  6. Step 6: Final answer
    x = 16,008,484.15

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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.