Home / 15,406,989.06-21,261,383.49-8,531,323.50

Finding the Fourth Proportional to 15,406,989.06, 21,261,383.49 and 8,531,323.50

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Solution

The fourth proportional to 15,406,989.06, 21,261,383.49 and 8,531,323.50 is: 11,773,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,989.06 : 21,261,383.49 = 8,531,323.50 : x
  2. Step 2: Convert to fraction form
    15,406,989.06/21,261,383.49 = 8,531,323.50/x
  3. Step 3: Cross multiply
    15,406,989.06x = 21,261,383.49 × 8,531,323.50
  4. Step 4: Simplify right side
    15,406,989.06x = 181,387,740,610,749
  5. Step 5: Solve for x
    x = 181,387,740,610,749/15,406,989.06
  6. Step 6: Final answer
    x = 11,773,081.68

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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.