Home / 29,131,131.60-40,201,042.77-15,900,427.98

Finding the Fourth Proportional to 29,131,131.60, 40,201,042.77 and 15,900,427.98

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Solution

The fourth proportional to 29,131,131.60, 40,201,042.77 and 15,900,427.98 is: 21,942,634.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,131,131.60 : 40,201,042.77 = 15,900,427.98 : x
  2. Step 2: Convert to fraction form
    29,131,131.60/40,201,042.77 = 15,900,427.98/x
  3. Step 3: Cross multiply
    29,131,131.60x = 40,201,042.77 × 15,900,427.98
  4. Step 4: Simplify right side
    29,131,131.60x = 639,213,785,285,284.75
  5. Step 5: Solve for x
    x = 639,213,785,285,284.75/29,131,131.60
  6. Step 6: Final answer
    x = 21,942,634.91

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1.5x scale

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.