Home / 21,581,756.81-29,781,938.15-11,792,537.05

Finding the Fourth Proportional to 21,581,756.81, 29,781,938.15 and 11,792,537.05

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Solution

The fourth proportional to 21,581,756.81, 29,781,938.15 and 11,792,537.05 is: 16,273,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,756.81 : 29,781,938.15 = 11,792,537.05 : x
  2. Step 2: Convert to fraction form
    21,581,756.81/29,781,938.15 = 11,792,537.05/x
  3. Step 3: Cross multiply
    21,581,756.81x = 29,781,938.15 × 11,792,537.05
  4. Step 4: Simplify right side
    21,581,756.81x = 351,204,608,905,773.75
  5. Step 5: Solve for x
    x = 351,204,608,905,773.75/21,581,756.81
  6. Step 6: Final answer
    x = 16,273,216.87

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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.