Home / 15,851,742-21,875,407.14-9,656,788.38

Finding the Fourth Proportional to 15,851,742, 21,875,407.14 and 9,656,788.38

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Solution

The fourth proportional to 15,851,742, 21,875,407.14 and 9,656,788.38 is: 13,326,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851,742 : 21,875,407.14 = 9,656,788.38 : x
  2. Step 2: Convert to fraction form
    15,851,742/21,875,407.14 = 9,656,788.38/x
  3. Step 3: Cross multiply
    15,851,742x = 21,875,407.14 × 9,656,788.38
  4. Step 4: Simplify right side
    15,851,742x = 211,246,177,477,321.06
  5. Step 5: Solve for x
    x = 211,246,177,477,321.06/15,851,742
  6. Step 6: Final answer
    x = 13,326,369.90

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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.