Home / 20,162,513.15-30,243,769.73-18,083,988.35

Finding the Fourth Proportional to 20,162,513.15, 30,243,769.73 and 18,083,988.35

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Solution

The fourth proportional to 20,162,513.15, 30,243,769.73 and 18,083,988.35 is: 27,125,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162,513.15 : 30,243,769.73 = 18,083,988.35 : x
  2. Step 2: Convert to fraction form
    20,162,513.15/30,243,769.73 = 18,083,988.35/x
  3. Step 3: Cross multiply
    20,162,513.15x = 30,243,769.73 × 18,083,988.35
  4. Step 4: Simplify right side
    20,162,513.15x = 546,927,979,457,402.69
  5. Step 5: Solve for x
    x = 546,927,979,457,402.69/20,162,513.15
  6. Step 6: Final answer
    x = 27,125,982.53

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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.