Home / 15,406,984.07-21,261,376.59-8,531,318.51

Finding the Fourth Proportional to 15,406,984.07, 21,261,376.59 and 8,531,318.51

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Solution

The fourth proportional to 15,406,984.07, 21,261,376.59 and 8,531,318.51 is: 11,773,074.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,984.07 : 21,261,376.59 = 8,531,318.51 : x
  2. Step 2: Convert to fraction form
    15,406,984.07/21,261,376.59 = 8,531,318.51/x
  3. Step 3: Cross multiply
    15,406,984.07x = 21,261,376.59 × 8,531,318.51
  4. Step 4: Simplify right side
    15,406,984.07x = 181,387,575,650,347.69
  5. Step 5: Solve for x
    x = 181,387,575,650,347.69/15,406,984.07
  6. Step 6: Final answer
    x = 11,773,074.78

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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.