Home / 493,155,385.76-680,296,414.95-304,923,509.12

Finding the Fourth Proportional to 493,155,385.76, 680,296,414.95 and 304,923,509.12

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Solution

The fourth proportional to 493,155,385.76, 680,296,414.95 and 304,923,509.12 is: 420,634,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,155,385.76 : 680,296,414.95 = 304,923,509.12 : x
  2. Step 2: Convert to fraction form
    493,155,385.76/680,296,414.95 = 304,923,509.12/x
  3. Step 3: Cross multiply
    493,155,385.76x = 680,296,414.95 × 304,923,509.12
  4. Step 4: Simplify right side
    493,155,385.76x = 207,438,370,084,908,160
  5. Step 5: Solve for x
    x = 207,438,370,084,908,160/493,155,385.76
  6. Step 6: Final answer
    x = 420,634,907.53

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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.