Home / 518,613,884.65-777,922,155.58-211,905,997.53

Finding the Fourth Proportional to 518,613,884.65, 777,922,155.58 and 211,905,997.53

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Solution

The fourth proportional to 518,613,884.65, 777,922,155.58 and 211,905,997.53 is: 317,859,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,613,884.65 : 777,922,155.58 = 211,905,997.53 : x
  2. Step 2: Convert to fraction form
    518,613,884.65/777,922,155.58 = 211,905,997.53/x
  3. Step 3: Cross multiply
    518,613,884.65x = 777,922,155.58 × 211,905,997.53
  4. Step 4: Simplify right side
    518,613,884.65x = 164,846,370,375,821,312
  5. Step 5: Solve for x
    x = 164,846,370,375,821,312/518,613,884.65
  6. Step 6: Final answer
    x = 317,859,539.16

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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.