Home / 18,782,193.65-28,132,798.14-12,683,388.76

Finding the Fourth Proportional to 18,782,193.65, 28,132,798.14 and 12,683,388.76

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Solution

The fourth proportional to 18,782,193.65, 28,132,798.14 and 12,683,388.76 is: 18,997,739.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,193.65 : 28,132,798.14 = 12,683,388.76 : x
  2. Step 2: Convert to fraction form
    18,782,193.65/28,132,798.14 = 12,683,388.76/x
  3. Step 3: Cross multiply
    18,782,193.65x = 28,132,798.14 × 12,683,388.76
  4. Step 4: Simplify right side
    18,782,193.65x = 356,819,215,645,892.94
  5. Step 5: Solve for x
    x = 356,819,215,645,892.94/18,782,193.65
  6. Step 6: Final answer
    x = 18,997,739.16

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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.