Home / 5,172,491.76-7,138,260.10-2,880,652.46

Finding the Fourth Proportional to 5,172,491.76, 7,138,260.10 and 2,880,652.46

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Solution

The fourth proportional to 5,172,491.76, 7,138,260.10 and 2,880,652.46 is: 3,975,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,491.76 : 7,138,260.10 = 2,880,652.46 : x
  2. Step 2: Convert to fraction form
    5,172,491.76/7,138,260.10 = 2,880,652.46/x
  3. Step 3: Cross multiply
    5,172,491.76x = 7,138,260.10 × 2,880,652.46
  4. Step 4: Simplify right side
    5,172,491.76x = 20,562,846,517,184.84
  5. Step 5: Solve for x
    x = 20,562,846,517,184.84/5,172,491.76
  6. Step 6: Final answer
    x = 3,975,423.74

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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.