Home / 13,188,004.80-19,782,007.20-7,141,387.20

Finding the Fourth Proportional to 13,188,004.80, 19,782,007.20 and 7,141,387.20

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Solution

The fourth proportional to 13,188,004.80, 19,782,007.20 and 7,141,387.20 is: 10,712,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,004.80 : 19,782,007.20 = 7,141,387.20 : x
  2. Step 2: Convert to fraction form
    13,188,004.80/19,782,007.20 = 7,141,387.20/x
  3. Step 3: Cross multiply
    13,188,004.80x = 19,782,007.20 × 7,141,387.20
  4. Step 4: Simplify right side
    13,188,004.80x = 141,270,973,008,387.84
  5. Step 5: Solve for x
    x = 141,270,973,008,387.84/13,188,004.80
  6. Step 6: Final answer
    x = 10,712,080.80

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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.