Home / 15,525,525.45-21,425,371.55-8,556,454.32

Finding the Fourth Proportional to 15,525,525.45, 21,425,371.55 and 8,556,454.32

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Solution

The fourth proportional to 15,525,525.45, 21,425,371.55 and 8,556,454.32 is: 11,807,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525,525.45 : 21,425,371.55 = 8,556,454.32 : x
  2. Step 2: Convert to fraction form
    15,525,525.45/21,425,371.55 = 8,556,454.32/x
  3. Step 3: Cross multiply
    15,525,525.45x = 21,425,371.55 × 8,556,454.32
  4. Step 4: Simplify right side
    15,525,525.45x = 183,325,212,865,561.88
  5. Step 5: Solve for x
    x = 183,325,212,865,561.88/15,525,525.45
  6. Step 6: Final answer
    x = 11,807,987.65

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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.