Home / 71,854,413.66-107,780,064.28-20,037,633.66

Finding the Fourth Proportional to 71,854,413.66, 107,780,064.28 and 20,037,633.66

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Solution

The fourth proportional to 71,854,413.66, 107,780,064.28 and 20,037,633.66 is: 30,056,016.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,854,413.66 : 107,780,064.28 = 20,037,633.66 : x
  2. Step 2: Convert to fraction form
    71,854,413.66/107,780,064.28 = 20,037,633.66/x
  3. Step 3: Cross multiply
    71,854,413.66x = 107,780,064.28 × 20,037,633.66
  4. Step 4: Simplify right side
    71,854,413.66x = 2,159,657,443,843,797.75
  5. Step 5: Solve for x
    x = 2,159,657,443,843,797.75/71,854,413.66
  6. Step 6: Final answer
    x = 30,056,016.52

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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.