Home / 21,680,222.23-29,915,948.49-12,388,394.60

Finding the Fourth Proportional to 21,680,222.23, 29,915,948.49 and 12,388,394.60

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Solution

The fourth proportional to 21,680,222.23, 29,915,948.49 and 12,388,394.60 is: 17,094,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680,222.23 : 29,915,948.49 = 12,388,394.60 : x
  2. Step 2: Convert to fraction form
    21,680,222.23/29,915,948.49 = 12,388,394.60/x
  3. Step 3: Cross multiply
    21,680,222.23x = 29,915,948.49 × 12,388,394.60
  4. Step 4: Simplify right side
    21,680,222.23x = 370,610,574,727,394.12
  5. Step 5: Solve for x
    x = 370,610,574,727,394.12/21,680,222.23
  6. Step 6: Final answer
    x = 17,094,408.48

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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.