Home / 72,578,403.20-108,718,305.60-36,696,828.80

Finding the Fourth Proportional to 72,578,403.20, 108,718,305.60 and 36,696,828.80

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Solution

The fourth proportional to 72,578,403.20, 108,718,305.60 and 36,696,828.80 is: 54,969,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,403.20 : 108,718,305.60 = 36,696,828.80 : x
  2. Step 2: Convert to fraction form
    72,578,403.20/108,718,305.60 = 36,696,828.80/x
  3. Step 3: Cross multiply
    72,578,403.20x = 108,718,305.60 × 36,696,828.80
  4. Step 4: Simplify right side
    72,578,403.20x = 3,989,617,048,029,280.50
  5. Step 5: Solve for x
    x = 3,989,617,048,029,280.50/72,578,403.20
  6. Step 6: Final answer
    x = 54,969,755.08

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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.