Home / 691,508,989.57-954,285,280.73-373,969,235.46

Finding the Fourth Proportional to 691,508,989.57, 954,285,280.73 and 373,969,235.46

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Solution

The fourth proportional to 691,508,989.57, 954,285,280.73 and 373,969,235.46 is: 516,079,099.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,508,989.57 : 954,285,280.73 = 373,969,235.46 : x
  2. Step 2: Convert to fraction form
    691,508,989.57/954,285,280.73 = 373,969,235.46/x
  3. Step 3: Cross multiply
    691,508,989.57x = 954,285,280.73 × 373,969,235.46
  4. Step 4: Simplify right side
    691,508,989.57x = 356,873,336,845,329,536
  5. Step 5: Solve for x
    x = 356,873,336,845,329,536/691,508,989.57
  6. Step 6: Final answer
    x = 516,079,099.81

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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.