Home / 18,872,756.62-28,309,208.73-5,742,305.23

Finding the Fourth Proportional to 18,872,756.62, 28,309,208.73 and 5,742,305.23

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Solution

The fourth proportional to 18,872,756.62, 28,309,208.73 and 5,742,305.23 is: 8,613,480.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,756.62 : 28,309,208.73 = 5,742,305.23 : x
  2. Step 2: Convert to fraction form
    18,872,756.62/28,309,208.73 = 5,742,305.23/x
  3. Step 3: Cross multiply
    18,872,756.62x = 28,309,208.73 × 5,742,305.23
  4. Step 4: Simplify right side
    18,872,756.62x = 162,560,117,205,894.59
  5. Step 5: Solve for x
    x = 162,560,117,205,894.59/18,872,756.62
  6. Step 6: Final answer
    x = 8,613,480.29

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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.