Home / 72,578,501.20-108,718,452.60-49,885,022.80

Finding the Fourth Proportional to 72,578,501.20, 108,718,452.60 and 49,885,022.80

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Solution

The fourth proportional to 72,578,501.20, 108,718,452.60 and 49,885,022.80 is: 74,724,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,501.20 : 108,718,452.60 = 49,885,022.80 : x
  2. Step 2: Convert to fraction form
    72,578,501.20/108,718,452.60 = 49,885,022.80/x
  3. Step 3: Cross multiply
    72,578,501.20x = 108,718,452.60 × 49,885,022.80
  4. Step 4: Simplify right side
    72,578,501.20x = 5,423,422,486,731,719
  5. Step 5: Solve for x
    x = 5,423,422,486,731,719/72,578,501.20
  6. Step 6: Final answer
    x = 74,724,917.12

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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.