Home / 20,620,308.37-28,456,317.02-11,328,737.17

Finding the Fourth Proportional to 20,620,308.37, 28,456,317.02 and 11,328,737.17

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Solution

The fourth proportional to 20,620,308.37, 28,456,317.02 and 11,328,737.17 is: 15,633,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,308.37 : 28,456,317.02 = 11,328,737.17 : x
  2. Step 2: Convert to fraction form
    20,620,308.37/28,456,317.02 = 11,328,737.17/x
  3. Step 3: Cross multiply
    20,620,308.37x = 28,456,317.02 × 11,328,737.17
  4. Step 4: Simplify right side
    20,620,308.37x = 322,374,136,188,449.81
  5. Step 5: Solve for x
    x = 322,374,136,188,449.81/20,620,308.37
  6. Step 6: Final answer
    x = 15,633,817.42

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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.