Home / 522,454,363.32-720,968,941.89-287,483,039.58

Finding the Fourth Proportional to 522,454,363.32, 720,968,941.89 and 287,483,039.58

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Solution

The fourth proportional to 522,454,363.32, 720,968,941.89 and 287,483,039.58 is: 396,716,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,454,363.32 : 720,968,941.89 = 287,483,039.58 : x
  2. Step 2: Convert to fraction form
    522,454,363.32/720,968,941.89 = 287,483,039.58/x
  3. Step 3: Cross multiply
    522,454,363.32x = 720,968,941.89 × 287,483,039.58
  4. Step 4: Simplify right side
    522,454,363.32x = 207,266,342,857,313,568
  5. Step 5: Solve for x
    x = 207,266,342,857,313,568/522,454,363.32
  6. Step 6: Final answer
    x = 396,716,646.29

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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.