Home / 28,195,259.34-38,911,383.15-15,972,216.78

Finding the Fourth Proportional to 28,195,259.34, 38,911,383.15 and 15,972,216.78

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Solution

The fourth proportional to 28,195,259.34, 38,911,383.15 and 15,972,216.78 is: 22,042,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195,259.34 : 38,911,383.15 = 15,972,216.78 : x
  2. Step 2: Convert to fraction form
    28,195,259.34/38,911,383.15 = 15,972,216.78/x
  3. Step 3: Cross multiply
    28,195,259.34x = 38,911,383.15 × 15,972,216.78
  4. Step 4: Simplify right side
    28,195,259.34x = 621,501,046,881,439.25
  5. Step 5: Solve for x
    x = 621,501,046,881,439.25/28,195,259.34
  6. Step 6: Final answer
    x = 22,042,749.79

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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.