Home / 3,126,875.16-4,691,121.38-1,831,121.74

Finding the Fourth Proportional to 3,126,875.16, 4,691,121.38 and 1,831,121.74

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Solution

The fourth proportional to 3,126,875.16, 4,691,121.38 and 1,831,121.74 is: 2,747,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126,875.16 : 4,691,121.38 = 1,831,121.74 : x
  2. Step 2: Convert to fraction form
    3,126,875.16/4,691,121.38 = 1,831,121.74/x
  3. Step 3: Cross multiply
    3,126,875.16x = 4,691,121.38 × 1,831,121.74
  4. Step 4: Simplify right side
    3,126,875.16x = 8,590,014,347,471.80
  5. Step 5: Solve for x
    x = 8,590,014,347,471.80/3,126,875.16
  6. Step 6: Final answer
    x = 2,747,156.15

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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.