Home / 21,750,920.64-30,015,635.76-11,961,354.96

Finding the Fourth Proportional to 21,750,920.64, 30,015,635.76 and 11,961,354.96

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Solution

The fourth proportional to 21,750,920.64, 30,015,635.76 and 11,961,354.96 is: 16,506,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750,920.64 : 30,015,635.76 = 11,961,354.96 : x
  2. Step 2: Convert to fraction form
    21,750,920.64/30,015,635.76 = 11,961,354.96/x
  3. Step 3: Cross multiply
    21,750,920.64x = 30,015,635.76 × 11,961,354.96
  4. Step 4: Simplify right side
    21,750,920.64x = 359,027,673,675,429.44
  5. Step 5: Solve for x
    x = 359,027,673,675,429.44/21,750,920.64
  6. Step 6: Final answer
    x = 16,506,320.80

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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.