Home / 84,196,418.50-126,294,632.64-20,371,010.50

Finding the Fourth Proportional to 84,196,418.50, 126,294,632.64 and 20,371,010.50

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Solution

The fourth proportional to 84,196,418.50, 126,294,632.64 and 20,371,010.50 is: 30,556,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,196,418.50 : 126,294,632.64 = 20,371,010.50 : x
  2. Step 2: Convert to fraction form
    84,196,418.50/126,294,632.64 = 20,371,010.50/x
  3. Step 3: Cross multiply
    84,196,418.50x = 126,294,632.64 × 20,371,010.50
  4. Step 4: Simplify right side
    84,196,418.50x = 2,572,749,287,603,082.50
  5. Step 5: Solve for x
    x = 2,572,749,287,603,082.50/84,196,418.50
  6. Step 6: Final answer
    x = 30,556,516.93

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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.