Home / 38,420,630.15-53,021,734.23-21,016,577.09

Finding the Fourth Proportional to 38,420,630.15, 53,021,734.23 and 21,016,577.09

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Solution

The fourth proportional to 38,420,630.15, 53,021,734.23 and 21,016,577.09 is: 29,003,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420,630.15 : 53,021,734.23 = 21,016,577.09 : x
  2. Step 2: Convert to fraction form
    38,420,630.15/53,021,734.23 = 21,016,577.09/x
  3. Step 3: Cross multiply
    38,420,630.15x = 53,021,734.23 × 21,016,577.09
  4. Step 4: Simplify right side
    38,420,630.15x = 1,114,335,364,625,178.12
  5. Step 5: Solve for x
    x = 1,114,335,364,625,178.12/38,420,630.15
  6. Step 6: Final answer
    x = 29,003,568.15

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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.