Home / 1,120,163,624.40-1,680,231,920.88-291,043,901.64

Finding the Fourth Proportional to 1,120,163,624.40, 1,680,231,920.88 and 291,043,901.64

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Solution

The fourth proportional to 1,120,163,624.40, 1,680,231,920.88 and 291,043,901.64 is: 436,562,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,163,624.40 : 1,680,231,920.88 = 291,043,901.64 : x
  2. Step 2: Convert to fraction form
    1,120,163,624.40/1,680,231,920.88 = 291,043,901.64/x
  3. Step 3: Cross multiply
    1,120,163,624.40x = 1,680,231,920.88 × 291,043,901.64
  4. Step 4: Simplify right side
    1,120,163,624.40x = 489,021,253,912,987,008
  5. Step 5: Solve for x
    x = 489,021,253,912,987,008/1,120,163,624.40
  6. Step 6: Final answer
    x = 436,562,340.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.