Home / 15,525,530.72-21,425,378.82-8,556,459.58

Finding the Fourth Proportional to 15,525,530.72, 21,425,378.82 and 8,556,459.58

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Solution

The fourth proportional to 15,525,530.72, 21,425,378.82 and 8,556,459.58 is: 11,807,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525,530.72 : 21,425,378.82 = 8,556,459.58 : x
  2. Step 2: Convert to fraction form
    15,525,530.72/21,425,378.82 = 8,556,459.58/x
  3. Step 3: Cross multiply
    15,525,530.72x = 21,425,378.82 × 8,556,459.58
  4. Step 4: Simplify right side
    15,525,530.72x = 183,325,387,859,518.09
  5. Step 5: Solve for x
    x = 183,325,387,859,518.09/15,525,530.72
  6. Step 6: Final answer
    x = 11,807,994.92

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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.