Home / 15,406,988.95-21,261,383.32-8,531,323.39

Finding the Fourth Proportional to 15,406,988.95, 21,261,383.32 and 8,531,323.39

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Solution

The fourth proportional to 15,406,988.95, 21,261,383.32 and 8,531,323.39 is: 11,773,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,988.95 : 21,261,383.32 = 8,531,323.39 : x
  2. Step 2: Convert to fraction form
    15,406,988.95/21,261,383.32 = 8,531,323.39/x
  3. Step 3: Cross multiply
    15,406,988.95x = 21,261,383.32 × 8,531,323.39
  4. Step 4: Simplify right side
    15,406,988.95x = 181,387,736,821,671.88
  5. Step 5: Solve for x
    x = 181,387,736,821,671.88/15,406,988.95
  6. Step 6: Final answer
    x = 11,773,081.52

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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.