Home / 19,299,207.19-28,942,388.02-7,781,699.65

Finding the Fourth Proportional to 19,299,207.19, 28,942,388.02 and 7,781,699.65

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Solution

The fourth proportional to 19,299,207.19, 28,942,388.02 and 7,781,699.65 is: 11,669,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299,207.19 : 28,942,388.02 = 7,781,699.65 : x
  2. Step 2: Convert to fraction form
    19,299,207.19/28,942,388.02 = 7,781,699.65/x
  3. Step 3: Cross multiply
    19,299,207.19x = 28,942,388.02 × 7,781,699.65
  4. Step 4: Simplify right side
    19,299,207.19x = 225,220,970,725,398.19
  5. Step 5: Solve for x
    x = 225,220,970,725,398.19/19,299,207.19
  6. Step 6: Final answer
    x = 11,669,959.73

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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.