Home / 15,406,987.06-21,261,380.73-8,531,321.50

Finding the Fourth Proportional to 15,406,987.06, 21,261,380.73 and 8,531,321.50

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Solution

The fourth proportional to 15,406,987.06, 21,261,380.73 and 8,531,321.50 is: 11,773,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,987.06 : 21,261,380.73 = 8,531,321.50 : x
  2. Step 2: Convert to fraction form
    15,406,987.06/21,261,380.73 = 8,531,321.50/x
  3. Step 3: Cross multiply
    15,406,987.06x = 21,261,380.73 × 8,531,321.50
  4. Step 4: Simplify right side
    15,406,987.06x = 181,387,674,541,534.69
  5. Step 5: Solve for x
    x = 181,387,674,541,534.69/15,406,987.06
  6. Step 6: Final answer
    x = 11,773,078.92

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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.