Home / 13,556,521.76-18,707,932-7,361,513.12

Finding the Fourth Proportional to 13,556,521.76, 18,707,932 and 7,361,513.12

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Solution

The fourth proportional to 13,556,521.76, 18,707,932 and 7,361,513.12 is: 10,158,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556,521.76 : 18,707,932 = 7,361,513.12 : x
  2. Step 2: Convert to fraction form
    13,556,521.76/18,707,932 = 7,361,513.12/x
  3. Step 3: Cross multiply
    13,556,521.76x = 18,707,932 × 7,361,513.12
  4. Step 4: Simplify right side
    13,556,521.76x = 137,718,686,866,067.84
  5. Step 5: Solve for x
    x = 137,718,686,866,067.84/13,556,521.76
  6. Step 6: Final answer
    x = 10,158,851.16

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1.5x scale

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.