Home / 5,309,195.20-7,963,792.80-1,320,107.20

Finding the Fourth Proportional to 5,309,195.20, 7,963,792.80 and 1,320,107.20

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Solution

The fourth proportional to 5,309,195.20, 7,963,792.80 and 1,320,107.20 is: 1,980,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309,195.20 : 7,963,792.80 = 1,320,107.20 : x
  2. Step 2: Convert to fraction form
    5,309,195.20/7,963,792.80 = 1,320,107.20/x
  3. Step 3: Cross multiply
    5,309,195.20x = 7,963,792.80 × 1,320,107.20
  4. Step 4: Simplify right side
    5,309,195.20x = 10,513,060,214,588.16
  5. Step 5: Solve for x
    x = 10,513,060,214,588.16/5,309,195.20
  6. Step 6: Final answer
    x = 1,980,160.80

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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.