Home / 15,095,171.10-20,831,584.95-8,219,787.42

Finding the Fourth Proportional to 15,095,171.10, 20,831,584.95 and 8,219,787.42

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Solution

The fourth proportional to 15,095,171.10, 20,831,584.95 and 8,219,787.42 is: 11,343,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,095,171.10 : 20,831,584.95 = 8,219,787.42 : x
  2. Step 2: Convert to fraction form
    15,095,171.10/20,831,584.95 = 8,219,787.42/x
  3. Step 3: Cross multiply
    15,095,171.10x = 20,831,584.95 × 8,219,787.42
  4. Step 4: Simplify right side
    15,095,171.10x = 171,231,199,910,671.31
  5. Step 5: Solve for x
    x = 171,231,199,910,671.31/15,095,171.10
  6. Step 6: Final answer
    x = 11,343,442.14

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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.