Home / 12,878,436.24-17,771,883.84-7,077,216.24

Finding the Fourth Proportional to 12,878,436.24, 17,771,883.84 and 7,077,216.24

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Solution

The fourth proportional to 12,878,436.24, 17,771,883.84 and 7,077,216.24 is: 9,766,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,436.24 : 17,771,883.84 = 7,077,216.24 : x
  2. Step 2: Convert to fraction form
    12,878,436.24/17,771,883.84 = 7,077,216.24/x
  3. Step 3: Cross multiply
    12,878,436.24x = 17,771,883.84 × 7,077,216.24
  4. Step 4: Simplify right side
    12,878,436.24x = 125,775,464,927,841.56
  5. Step 5: Solve for x
    x = 125,775,464,927,841.56/12,878,436.24
  6. Step 6: Final answer
    x = 9,766,361.58

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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.