Home / 21,391,793.21-29,521,342.88-12,099,181.43

Finding the Fourth Proportional to 21,391,793.21, 29,521,342.88 and 12,099,181.43

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Solution

The fourth proportional to 21,391,793.21, 29,521,342.88 and 12,099,181.43 is: 16,697,248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391,793.21 : 29,521,342.88 = 12,099,181.43 : x
  2. Step 2: Convert to fraction form
    21,391,793.21/29,521,342.88 = 12,099,181.43/x
  3. Step 3: Cross multiply
    21,391,793.21x = 29,521,342.88 × 12,099,181.43
  4. Step 4: Simplify right side
    21,391,793.21x = 357,184,083,562,358.69
  5. Step 5: Solve for x
    x = 357,184,083,562,358.69/21,391,793.21
  6. Step 6: Final answer
    x = 16,697,248.34

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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.