Home / 7,328,637.20-10,989,845.40-3,543,280.40

Finding the Fourth Proportional to 7,328,637.20, 10,989,845.40 and 3,543,280.40

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Solution

The fourth proportional to 7,328,637.20, 10,989,845.40 and 3,543,280.40 is: 5,313,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328,637.20 : 10,989,845.40 = 3,543,280.40 : x
  2. Step 2: Convert to fraction form
    7,328,637.20/10,989,845.40 = 3,543,280.40/x
  3. Step 3: Cross multiply
    7,328,637.20x = 10,989,845.40 × 3,543,280.40
  4. Step 4: Simplify right side
    7,328,637.20x = 38,940,103,804,850.16
  5. Step 5: Solve for x
    x = 38,940,103,804,850.16/7,328,637.20
  6. Step 6: Final answer
    x = 5,313,416.77

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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.