Home / 84,437,640.15-126,738,363.11-40,749,145.35

Finding the Fourth Proportional to 84,437,640.15, 126,738,363.11 and 40,749,145.35

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Solution

The fourth proportional to 84,437,640.15, 126,738,363.11 and 40,749,145.35 is: 61,163,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,437,640.15 : 126,738,363.11 = 40,749,145.35 : x
  2. Step 2: Convert to fraction form
    84,437,640.15/126,738,363.11 = 40,749,145.35/x
  3. Step 3: Cross multiply
    84,437,640.15x = 126,738,363.11 × 40,749,145.35
  4. Step 4: Simplify right side
    84,437,640.15x = 5,164,479,979,586,723
  5. Step 5: Solve for x
    x = 5,164,479,979,586,723/84,437,640.15
  6. Step 6: Final answer
    x = 61,163,243.91

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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.