Home / 92,974,179.42-128,012,313.78-79,006,072.86

Finding the Fourth Proportional to 92,974,179.42, 128,012,313.78 and 79,006,072.86

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Solution

The fourth proportional to 92,974,179.42, 128,012,313.78 and 79,006,072.86 is: 108,780,203.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,974,179.42 : 128,012,313.78 = 79,006,072.86 : x
  2. Step 2: Convert to fraction form
    92,974,179.42/128,012,313.78 = 79,006,072.86/x
  3. Step 3: Cross multiply
    92,974,179.42x = 128,012,313.78 × 79,006,072.86
  4. Step 4: Simplify right side
    92,974,179.42x = 10,113,750,189,479,862
  5. Step 5: Solve for x
    x = 10,113,750,189,479,862/92,974,179.42
  6. Step 6: Final answer
    x = 108,780,203.84

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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.