Home / 12,551,668.28-18,809,703.88-5,257,267.56

Finding the Fourth Proportional to 12,551,668.28, 18,809,703.88 and 5,257,267.56

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Solution

The fourth proportional to 12,551,668.28, 18,809,703.88 and 5,257,267.56 is: 7,878,446.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,668.28 : 18,809,703.88 = 5,257,267.56 : x
  2. Step 2: Convert to fraction form
    12,551,668.28/18,809,703.88 = 5,257,267.56/x
  3. Step 3: Cross multiply
    12,551,668.28x = 18,809,703.88 × 5,257,267.56
  4. Step 4: Simplify right side
    12,551,668.28x = 98,887,646,021,530.12
  5. Step 5: Solve for x
    x = 98,887,646,021,530.12/12,551,668.28
  6. Step 6: Final answer
    x = 7,878,446.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.