Home / 21,643,969.11-29,868,706.35-11,720,869.10

Finding the Fourth Proportional to 21,643,969.11, 29,868,706.35 and 11,720,869.10

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Solution

The fourth proportional to 21,643,969.11, 29,868,706.35 and 11,720,869.10 is: 16,174,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643,969.11 : 29,868,706.35 = 11,720,869.10 : x
  2. Step 2: Convert to fraction form
    21,643,969.11/29,868,706.35 = 11,720,869.10/x
  3. Step 3: Cross multiply
    21,643,969.11x = 29,868,706.35 × 11,720,869.10
  4. Step 4: Simplify right side
    21,643,969.11x = 350,087,197,277,352.94
  5. Step 5: Solve for x
    x = 350,087,197,277,352.94/21,643,969.11
  6. Step 6: Final answer
    x = 16,174,815.05

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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.