Home / 18,782,195.05-28,132,800.25-12,683,390.16

Finding the Fourth Proportional to 18,782,195.05, 28,132,800.25 and 12,683,390.16

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Solution

The fourth proportional to 18,782,195.05, 28,132,800.25 and 12,683,390.16 is: 18,997,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,195.05 : 28,132,800.25 = 12,683,390.16 : x
  2. Step 2: Convert to fraction form
    18,782,195.05/28,132,800.25 = 12,683,390.16/x
  3. Step 3: Cross multiply
    18,782,195.05x = 28,132,800.25 × 12,683,390.16
  4. Step 4: Simplify right side
    18,782,195.05x = 356,819,281,953,739.31
  5. Step 5: Solve for x
    x = 356,819,281,953,739.31/18,782,195.05
  6. Step 6: Final answer
    x = 18,997,741.26

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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.