Home / 71,457,396.48-107,169,998.40-20,338,283.52

Finding the Fourth Proportional to 71,457,396.48, 107,169,998.40 and 20,338,283.52

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Solution

The fourth proportional to 71,457,396.48, 107,169,998.40 and 20,338,283.52 is: 30,502,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,457,396.48 : 107,169,998.40 = 20,338,283.52 : x
  2. Step 2: Convert to fraction form
    71,457,396.48/107,169,998.40 = 20,338,283.52/x
  3. Step 3: Cross multiply
    71,457,396.48x = 107,169,998.40 × 20,338,283.52
  4. Step 4: Simplify right side
    71,457,396.48x = 2,179,653,812,297,146.50
  5. Step 5: Solve for x
    x = 2,179,653,812,297,146.50/71,457,396.48
  6. Step 6: Final answer
    x = 30,502,843.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.