Home / 69,015,363.84-103,537,739.52-20,493,357.12

Finding the Fourth Proportional to 69,015,363.84, 103,537,739.52 and 20,493,357.12

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Solution

The fourth proportional to 69,015,363.84, 103,537,739.52 and 20,493,357.12 is: 30,744,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,015,363.84 : 103,537,739.52 = 20,493,357.12 : x
  2. Step 2: Convert to fraction form
    69,015,363.84/103,537,739.52 = 20,493,357.12/x
  3. Step 3: Cross multiply
    69,015,363.84x = 103,537,739.52 × 20,493,357.12
  4. Step 4: Simplify right side
    69,015,363.84x = 2,121,835,871,380,897.50
  5. Step 5: Solve for x
    x = 2,121,835,871,380,897.50/69,015,363.84
  6. Step 6: Final answer
    x = 30,744,398.83

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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.