Home / 493,675,091.87-681,341,033.16-305,563,725.95

Finding the Fourth Proportional to 493,675,091.87, 681,341,033.16 and 305,563,725.95

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Solution

The fourth proportional to 493,675,091.87, 681,341,033.16 and 305,563,725.95 is: 421,720,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,675,091.87 : 681,341,033.16 = 305,563,725.95 : x
  2. Step 2: Convert to fraction form
    493,675,091.87/681,341,033.16 = 305,563,725.95/x
  3. Step 3: Cross multiply
    493,675,091.87x = 681,341,033.16 × 305,563,725.95
  4. Step 4: Simplify right side
    493,675,091.87x = 208,193,104,731,585,376
  5. Step 5: Solve for x
    x = 208,193,104,731,585,376/493,675,091.87
  6. Step 6: Final answer
    x = 421,720,901.38

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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.