Home / 21,580,539.90-29,781,177.05-12,288,117.52

Finding the Fourth Proportional to 21,580,539.90, 29,781,177.05 and 12,288,117.52

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Solution

The fourth proportional to 21,580,539.90, 29,781,177.05 and 12,288,117.52 is: 16,957,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,539.90 : 29,781,177.05 = 12,288,117.52 : x
  2. Step 2: Convert to fraction form
    21,580,539.90/29,781,177.05 = 12,288,117.52/x
  3. Step 3: Cross multiply
    21,580,539.90x = 29,781,177.05 × 12,288,117.52
  4. Step 4: Simplify right side
    21,580,539.90x = 365,954,603,474,326.94
  5. Step 5: Solve for x
    x = 365,954,603,474,326.94/21,580,539.90
  6. Step 6: Final answer
    x = 16,957,620.39

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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.