Home / 522,454,360.32-720,968,937.75-287,483,036.58

Finding the Fourth Proportional to 522,454,360.32, 720,968,937.75 and 287,483,036.58

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Solution

The fourth proportional to 522,454,360.32, 720,968,937.75 and 287,483,036.58 is: 396,716,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,454,360.32 : 720,968,937.75 = 287,483,036.58 : x
  2. Step 2: Convert to fraction form
    522,454,360.32/720,968,937.75 = 287,483,036.58/x
  3. Step 3: Cross multiply
    522,454,360.32x = 720,968,937.75 × 287,483,036.58
  4. Step 4: Simplify right side
    522,454,360.32x = 207,266,339,504,226,976
  5. Step 5: Solve for x
    x = 207,266,339,504,226,976/522,454,360.32
  6. Step 6: Final answer
    x = 396,716,642.15

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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.