Home / 87,760,764.84-121,051,540.40-56,438,414.32

Finding the Fourth Proportional to 87,760,764.84, 121,051,540.40 and 56,438,414.32

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Solution

The fourth proportional to 87,760,764.84, 121,051,540.40 and 56,438,414.32 is: 77,847,509.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,760,764.84 : 121,051,540.40 = 56,438,414.32 : x
  2. Step 2: Convert to fraction form
    87,760,764.84/121,051,540.40 = 56,438,414.32/x
  3. Step 3: Cross multiply
    87,760,764.84x = 121,051,540.40 × 56,438,414.32
  4. Step 4: Simplify right side
    87,760,764.84x = 6,831,956,991,169,419
  5. Step 5: Solve for x
    x = 6,831,956,991,169,419/87,760,764.84
  6. Step 6: Final answer
    x = 77,847,509.69

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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.