Home / 72,846,379.12-100,528,269.87-39,806,632.21

Finding the Fourth Proportional to 72,846,379.12, 100,528,269.87 and 39,806,632.21

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Solution

The fourth proportional to 72,846,379.12, 100,528,269.87 and 39,806,632.21 is: 54,933,298.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,846,379.12 : 100,528,269.87 = 39,806,632.21 : x
  2. Step 2: Convert to fraction form
    72,846,379.12/100,528,269.87 = 39,806,632.21/x
  3. Step 3: Cross multiply
    72,846,379.12x = 100,528,269.87 × 39,806,632.21
  4. Step 4: Simplify right side
    72,846,379.12x = 4,001,691,865,422,715
  5. Step 5: Solve for x
    x = 4,001,691,865,422,715/72,846,379.12
  6. Step 6: Final answer
    x = 54,933,298.18

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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.