Home / 15,292,474.79-21,103,787.72-8,323,196.95

Finding the Fourth Proportional to 15,292,474.79, 21,103,787.72 and 8,323,196.95

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Solution

The fourth proportional to 15,292,474.79, 21,103,787.72 and 8,323,196.95 is: 11,486,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292,474.79 : 21,103,787.72 = 8,323,196.95 : x
  2. Step 2: Convert to fraction form
    15,292,474.79/21,103,787.72 = 8,323,196.95/x
  3. Step 3: Cross multiply
    15,292,474.79x = 21,103,787.72 × 8,323,196.95
  4. Step 4: Simplify right side
    15,292,474.79x = 175,650,981,631,739.19
  5. Step 5: Solve for x
    x = 175,650,981,631,739.19/15,292,474.79
  6. Step 6: Final answer
    x = 11,486,105.69

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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.