Home / 28,242,972.16-38,975,877.15-15,853,958.88

Finding the Fourth Proportional to 28,242,972.16, 38,975,877.15 and 15,853,958.88

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Solution

The fourth proportional to 28,242,972.16, 38,975,877.15 and 15,853,958.88 is: 21,878,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,972.16 : 38,975,877.15 = 15,853,958.88 : x
  2. Step 2: Convert to fraction form
    28,242,972.16/38,975,877.15 = 15,853,958.88/x
  3. Step 3: Cross multiply
    28,242,972.16x = 38,975,877.15 × 15,853,958.88
  4. Step 4: Simplify right side
    28,242,972.16x = 617,921,953,588,579.25
  5. Step 5: Solve for x
    x = 617,921,953,588,579.25/28,242,972.16
  6. Step 6: Final answer
    x = 21,878,786.34

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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.