Home / 84,253,670.70-126,380,506.05-69,892,953.90

Finding the Fourth Proportional to 84,253,670.70, 126,380,506.05 and 69,892,953.90

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Solution

The fourth proportional to 84,253,670.70, 126,380,506.05 and 69,892,953.90 is: 104,839,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,253,670.70 : 126,380,506.05 = 69,892,953.90 : x
  2. Step 2: Convert to fraction form
    84,253,670.70/126,380,506.05 = 69,892,953.90/x
  3. Step 3: Cross multiply
    84,253,670.70x = 126,380,506.05 × 69,892,953.90
  4. Step 4: Simplify right side
    84,253,670.70x = 8,833,106,883,211,322
  5. Step 5: Solve for x
    x = 8,833,106,883,211,322/84,253,670.70
  6. Step 6: Final answer
    x = 104,839,430.85

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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.