Home / 57,091,131.15-78,785,838.86-30,985,649.34

Finding the Fourth Proportional to 57,091,131.15, 78,785,838.86 and 30,985,649.34

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Solution

The fourth proportional to 57,091,131.15, 78,785,838.86 and 30,985,649.34 is: 42,760,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,131.15 : 78,785,838.86 = 30,985,649.34 : x
  2. Step 2: Convert to fraction form
    57,091,131.15/78,785,838.86 = 30,985,649.34/x
  3. Step 3: Cross multiply
    57,091,131.15x = 78,785,838.86 × 30,985,649.34
  4. Step 4: Simplify right side
    57,091,131.15x = 2,441,230,375,873,705.50
  5. Step 5: Solve for x
    x = 2,441,230,375,873,705.50/57,091,131.15
  6. Step 6: Final answer
    x = 42,760,238.35

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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.