Home / 65,370,432.31-90,221,004.23-49,663,610.60

Finding the Fourth Proportional to 65,370,432.31, 90,221,004.23 and 49,663,610.60

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Solution

The fourth proportional to 65,370,432.31, 90,221,004.23 and 49,663,610.60 is: 68,543,233.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,370,432.31 : 90,221,004.23 = 49,663,610.60 : x
  2. Step 2: Convert to fraction form
    65,370,432.31/90,221,004.23 = 49,663,610.60/x
  3. Step 3: Cross multiply
    65,370,432.31x = 90,221,004.23 × 49,663,610.60
  4. Step 4: Simplify right side
    65,370,432.31x = 4,480,700,821,320,249.50
  5. Step 5: Solve for x
    x = 4,480,700,821,320,249.50/65,370,432.31
  6. Step 6: Final answer
    x = 68,543,233.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.