Home / 15,338,742.72-21,175,134.68-9,539,392.76

Finding the Fourth Proportional to 15,338,742.72, 21,175,134.68 and 9,539,392.76

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Solution

The fourth proportional to 15,338,742.72, 21,175,134.68 and 9,539,392.76 is: 13,169,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,742.72 : 21,175,134.68 = 9,539,392.76 : x
  2. Step 2: Convert to fraction form
    15,338,742.72/21,175,134.68 = 9,539,392.76/x
  3. Step 3: Cross multiply
    15,338,742.72x = 21,175,134.68 × 9,539,392.76
  4. Step 4: Simplify right side
    15,338,742.72x = 201,997,926,458,416.91
  5. Step 5: Solve for x
    x = 201,997,926,458,416.91/15,338,742.72
  6. Step 6: Final answer
    x = 13,169,131.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.