Home / 15,687,567.12-21,642,127.26-9,796,974.74

Finding the Fourth Proportional to 15,687,567.12, 21,642,127.26 and 9,796,974.74

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Solution

The fourth proportional to 15,687,567.12, 21,642,127.26 and 9,796,974.74 is: 13,515,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687,567.12 : 21,642,127.26 = 9,796,974.74 : x
  2. Step 2: Convert to fraction form
    15,687,567.12/21,642,127.26 = 9,796,974.74/x
  3. Step 3: Cross multiply
    15,687,567.12x = 21,642,127.26 × 9,796,974.74
  4. Step 4: Simplify right side
    15,687,567.12x = 212,027,374,086,085.44
  5. Step 5: Solve for x
    x = 212,027,374,086,085.44/15,687,567.12
  6. Step 6: Final answer
    x = 13,515,631.36

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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.