Home / 13,666,072.49-20,513,292.60-7,920,032.75

Finding the Fourth Proportional to 13,666,072.49, 20,513,292.60 and 7,920,032.75

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Solution

The fourth proportional to 13,666,072.49, 20,513,292.60 and 7,920,032.75 is: 11,888,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666,072.49 : 20,513,292.60 = 7,920,032.75 : x
  2. Step 2: Convert to fraction form
    13,666,072.49/20,513,292.60 = 7,920,032.75/x
  3. Step 3: Cross multiply
    13,666,072.49x = 20,513,292.60 × 7,920,032.75
  4. Step 4: Simplify right side
    13,666,072.49x = 162,465,949,206,391.19
  5. Step 5: Solve for x
    x = 162,465,949,206,391.19/13,666,072.49
  6. Step 6: Final answer
    x = 11,888,269.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.