Home / 15,285,621.88-21,086,118.34-9,086,259.07

Finding the Fourth Proportional to 15,285,621.88, 21,086,118.34 and 9,086,259.07

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Solution

The fourth proportional to 15,285,621.88, 21,086,118.34 and 9,086,259.07 is: 12,534,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285,621.88 : 21,086,118.34 = 9,086,259.07 : x
  2. Step 2: Convert to fraction form
    15,285,621.88/21,086,118.34 = 9,086,259.07/x
  3. Step 3: Cross multiply
    15,285,621.88x = 21,086,118.34 × 9,086,259.07
  4. Step 4: Simplify right side
    15,285,621.88x = 191,593,934,017,918.34
  5. Step 5: Solve for x
    x = 191,593,934,017,918.34/15,285,621.88
  6. Step 6: Final answer
    x = 12,534,258.37

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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.