Home / 15,479,787.47-21,362,120.36-8,510,583.58

Finding the Fourth Proportional to 15,479,787.47, 21,362,120.36 and 8,510,583.58

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Solution

The fourth proportional to 15,479,787.47, 21,362,120.36 and 8,510,583.58 is: 11,744,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479,787.47 : 21,362,120.36 = 8,510,583.58 : x
  2. Step 2: Convert to fraction form
    15,479,787.47/21,362,120.36 = 8,510,583.58/x
  3. Step 3: Cross multiply
    15,479,787.47x = 21,362,120.36 × 8,510,583.58
  4. Step 4: Simplify right side
    15,479,787.47x = 181,804,110,873,790.12
  5. Step 5: Solve for x
    x = 181,804,110,873,790.12/15,479,787.47
  6. Step 6: Final answer
    x = 11,744,612.85

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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.