Home / 28,009,241.49-38,652,921.89-15,620,118.18

Finding the Fourth Proportional to 28,009,241.49, 38,652,921.89 and 15,620,118.18

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Solution

The fourth proportional to 28,009,241.49, 38,652,921.89 and 15,620,118.18 is: 21,555,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009,241.49 : 38,652,921.89 = 15,620,118.18 : x
  2. Step 2: Convert to fraction form
    28,009,241.49/38,652,921.89 = 15,620,118.18/x
  3. Step 3: Cross multiply
    28,009,241.49x = 38,652,921.89 × 15,620,118.18
  4. Step 4: Simplify right side
    28,009,241.49x = 603,763,207,924,109
  5. Step 5: Solve for x
    x = 603,763,207,924,109/28,009,241.49
  6. Step 6: Final answer
    x = 21,555,857.13

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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.