Home / 84,022,745.48-126,038,058.06-40,840,474.76

Finding the Fourth Proportional to 84,022,745.48, 126,038,058.06 and 40,840,474.76

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Solution

The fourth proportional to 84,022,745.48, 126,038,058.06 and 40,840,474.76 is: 61,262,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,022,745.48 : 126,038,058.06 = 40,840,474.76 : x
  2. Step 2: Convert to fraction form
    84,022,745.48/126,038,058.06 = 40,840,474.76/x
  3. Step 3: Cross multiply
    84,022,745.48x = 126,038,058.06 × 40,840,474.76
  4. Step 4: Simplify right side
    84,022,745.48x = 5,147,454,128,368,655
  5. Step 5: Solve for x
    x = 5,147,454,128,368,655/84,022,745.48
  6. Step 6: Final answer
    x = 61,262,627.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.