Home / 15,863,047.68-21,891,144.32-8,619,703.68

Finding the Fourth Proportional to 15,863,047.68, 21,891,144.32 and 8,619,703.68

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Solution

The fourth proportional to 15,863,047.68, 21,891,144.32 and 8,619,703.68 is: 11,895,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863,047.68 : 21,891,144.32 = 8,619,703.68 : x
  2. Step 2: Convert to fraction form
    15,863,047.68/21,891,144.32 = 8,619,703.68/x
  3. Step 3: Cross multiply
    15,863,047.68x = 21,891,144.32 × 8,619,703.68
  4. Step 4: Simplify right side
    15,863,047.68x = 188,695,177,254,515.09
  5. Step 5: Solve for x
    x = 188,695,177,254,515.09/15,863,047.68
  6. Step 6: Final answer
    x = 11,895,266.35

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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.