Home / 15,918,443.72-21,967,242.20-8,853,989.32

Finding the Fourth Proportional to 15,918,443.72, 21,967,242.20 and 8,853,989.32

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Solution

The fourth proportional to 15,918,443.72, 21,967,242.20 and 8,853,989.32 is: 12,218,388.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918,443.72 : 21,967,242.20 = 8,853,989.32 : x
  2. Step 2: Convert to fraction form
    15,918,443.72/21,967,242.20 = 8,853,989.32/x
  3. Step 3: Cross multiply
    15,918,443.72x = 21,967,242.20 × 8,853,989.32
  4. Step 4: Simplify right side
    15,918,443.72x = 194,497,727,828,653.31
  5. Step 5: Solve for x
    x = 194,497,727,828,653.31/15,918,443.72
  6. Step 6: Final answer
    x = 12,218,388.38

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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.