Home / 5,128,396.92-7,076,712.09-2,836,508.40

Finding the Fourth Proportional to 5,128,396.92, 7,076,712.09 and 2,836,508.40

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Solution

The fourth proportional to 5,128,396.92, 7,076,712.09 and 2,836,508.40 is: 3,914,118.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,396.92 : 7,076,712.09 = 2,836,508.40 : x
  2. Step 2: Convert to fraction form
    5,128,396.92/7,076,712.09 = 2,836,508.40/x
  3. Step 3: Cross multiply
    5,128,396.92x = 7,076,712.09 × 2,836,508.40
  4. Step 4: Simplify right side
    5,128,396.92x = 20,073,153,287,666.55
  5. Step 5: Solve for x
    x = 20,073,153,287,666.55/5,128,396.92
  6. Step 6: Final answer
    x = 3,914,118.51

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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.