Home / 21,153,435.70-29,197,794.71-12,456,652.85

Finding the Fourth Proportional to 21,153,435.70, 29,197,794.71 and 12,456,652.85

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Solution

The fourth proportional to 21,153,435.70, 29,197,794.71 and 12,456,652.85 is: 17,193,745.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,435.70 : 29,197,794.71 = 12,456,652.85 : x
  2. Step 2: Convert to fraction form
    21,153,435.70/29,197,794.71 = 12,456,652.85/x
  3. Step 3: Cross multiply
    21,153,435.70x = 29,197,794.71 × 12,456,652.85
  4. Step 4: Simplify right side
    21,153,435.70x = 363,706,792,688,036.44
  5. Step 5: Solve for x
    x = 363,706,792,688,036.44/21,153,435.70
  6. Step 6: Final answer
    x = 17,193,745.63

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1.5x scale

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.