Home / 19,200,472.65-28,800,736.70-7,840,921.28

Finding the Fourth Proportional to 19,200,472.65, 28,800,736.70 and 7,840,921.28

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Solution

The fourth proportional to 19,200,472.65, 28,800,736.70 and 7,840,921.28 is: 11,761,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,472.65 : 28,800,736.70 = 7,840,921.28 : x
  2. Step 2: Convert to fraction form
    19,200,472.65/28,800,736.70 = 7,840,921.28/x
  3. Step 3: Cross multiply
    19,200,472.65x = 28,800,736.70 × 7,840,921.28
  4. Step 4: Simplify right side
    19,200,472.65x = 225,824,309,254,308.34
  5. Step 5: Solve for x
    x = 225,824,309,254,308.34/19,200,472.65
  6. Step 6: Final answer
    x = 11,761,393.24

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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.