Home / 28,731,410.46-39,650,189.13-15,679,512.18

Finding the Fourth Proportional to 28,731,410.46, 39,650,189.13 and 15,679,512.18

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Solution

The fourth proportional to 28,731,410.46, 39,650,189.13 and 15,679,512.18 is: 21,638,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,410.46 : 39,650,189.13 = 15,679,512.18 : x
  2. Step 2: Convert to fraction form
    28,731,410.46/39,650,189.13 = 15,679,512.18/x
  3. Step 3: Cross multiply
    28,731,410.46x = 39,650,189.13 × 15,679,512.18
  4. Step 4: Simplify right side
    28,731,410.46x = 621,695,623,403,138.62
  5. Step 5: Solve for x
    x = 621,695,623,403,138.62/28,731,410.46
  6. Step 6: Final answer
    x = 21,638,186.69

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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.