Home / 31,638,704.31-43,661,018.79-18,587,152.98

Finding the Fourth Proportional to 31,638,704.31, 43,661,018.79 and 18,587,152.98

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Solution

The fourth proportional to 31,638,704.31, 43,661,018.79 and 18,587,152.98 is: 25,650,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638,704.31 : 43,661,018.79 = 18,587,152.98 : x
  2. Step 2: Convert to fraction form
    31,638,704.31/43,661,018.79 = 18,587,152.98/x
  3. Step 3: Cross multiply
    31,638,704.31x = 43,661,018.79 × 18,587,152.98
  4. Step 4: Simplify right side
    31,638,704.31x = 811,534,035,512,384.50
  5. Step 5: Solve for x
    x = 811,534,035,512,384.50/31,638,704.31
  6. Step 6: Final answer
    x = 25,650,040.14

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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.