Home / 522,030,758.88-720,420,933.84-287,099,603.04

Finding the Fourth Proportional to 522,030,758.88, 720,420,933.84 and 287,099,603.04

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Solution

The fourth proportional to 522,030,758.88, 720,420,933.84 and 287,099,603.04 is: 396,207,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,030,758.88 : 720,420,933.84 = 287,099,603.04 : x
  2. Step 2: Convert to fraction form
    522,030,758.88/720,420,933.84 = 287,099,603.04/x
  3. Step 3: Cross multiply
    522,030,758.88x = 720,420,933.84 × 287,099,603.04
  4. Step 4: Simplify right side
    522,030,758.88x = 206,832,564,127,170,112
  5. Step 5: Solve for x
    x = 206,832,564,127,170,112/522,030,758.88
  6. Step 6: Final answer
    x = 396,207,619.20

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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.