Home / 493,522,849.02-681,134,628.77-312,486,657.48

Finding the Fourth Proportional to 493,522,849.02, 681,134,628.77 and 312,486,657.48

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Solution

The fourth proportional to 493,522,849.02, 681,134,628.77 and 312,486,657.48 is: 431,277,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,522,849.02 : 681,134,628.77 = 312,486,657.48 : x
  2. Step 2: Convert to fraction form
    493,522,849.02/681,134,628.77 = 312,486,657.48/x
  3. Step 3: Cross multiply
    493,522,849.02x = 681,134,628.77 × 312,486,657.48
  4. Step 4: Simplify right side
    493,522,849.02x = 212,845,483,436,515,104
  5. Step 5: Solve for x
    x = 212,845,483,436,515,104/493,522,849.02
  6. Step 6: Final answer
    x = 431,277,870.64

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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.