Home / 81,057,956.28-121,594,408.93-26,470,827.90

Finding the Fourth Proportional to 81,057,956.28, 121,594,408.93 and 26,470,827.90

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Solution

The fourth proportional to 81,057,956.28, 121,594,408.93 and 26,470,827.90 is: 39,708,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,057,956.28 : 121,594,408.93 = 26,470,827.90 : x
  2. Step 2: Convert to fraction form
    81,057,956.28/121,594,408.93 = 26,470,827.90/x
  3. Step 3: Cross multiply
    81,057,956.28x = 121,594,408.93 × 26,470,827.90
  4. Step 4: Simplify right side
    81,057,956.28x = 3,218,704,672,272,311
  5. Step 5: Solve for x
    x = 3,218,704,672,272,311/81,057,956.28
  6. Step 6: Final answer
    x = 39,708,682.77

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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.