Home / 81,718,999.40-122,522,511.90-38,608,855.40

Finding the Fourth Proportional to 81,718,999.40, 122,522,511.90 and 38,608,855.40

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Solution

The fourth proportional to 81,718,999.40, 122,522,511.90 and 38,608,855.40 is: 57,886,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,718,999.40 : 122,522,511.90 = 38,608,855.40 : x
  2. Step 2: Convert to fraction form
    81,718,999.40/122,522,511.90 = 38,608,855.40/x
  3. Step 3: Cross multiply
    81,718,999.40x = 122,522,511.90 × 38,608,855.40
  4. Step 4: Simplify right side
    81,718,999.40x = 4,730,453,945,191,879
  5. Step 5: Solve for x
    x = 4,730,453,945,191,879/81,718,999.40
  6. Step 6: Final answer
    x = 57,886,831.46

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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.