Home / 15,525,528.72-21,425,376.05-8,556,457.57

Finding the Fourth Proportional to 15,525,528.72, 21,425,376.05 and 8,556,457.57

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Solution

The fourth proportional to 15,525,528.72, 21,425,376.05 and 8,556,457.57 is: 11,807,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525,528.72 : 21,425,376.05 = 8,556,457.57 : x
  2. Step 2: Convert to fraction form
    15,525,528.72/21,425,376.05 = 8,556,457.57/x
  3. Step 3: Cross multiply
    15,525,528.72x = 21,425,376.05 × 8,556,457.57
  4. Step 4: Simplify right side
    15,525,528.72x = 183,325,321,093,119.22
  5. Step 5: Solve for x
    x = 183,325,321,093,119.22/15,525,528.72
  6. Step 6: Final answer
    x = 11,807,992.14

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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.