Home / 72,183,669.30-108,275,503.95-67,081,835.70

Finding the Fourth Proportional to 72,183,669.30, 108,275,503.95 and 67,081,835.70

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Solution

The fourth proportional to 72,183,669.30, 108,275,503.95 and 67,081,835.70 is: 100,622,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183,669.30 : 108,275,503.95 = 67,081,835.70 : x
  2. Step 2: Convert to fraction form
    72,183,669.30/108,275,503.95 = 67,081,835.70/x
  3. Step 3: Cross multiply
    72,183,669.30x = 108,275,503.95 × 67,081,835.70
  4. Step 4: Simplify right side
    72,183,669.30x = 7,263,319,566,308,602
  5. Step 5: Solve for x
    x = 7,263,319,566,308,602/72,183,669.30
  6. Step 6: Final answer
    x = 100,622,753.55

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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.