Home / 643,723,014.24-888,277,042.08-361,410,317.28

Finding the Fourth Proportional to 643,723,014.24, 888,277,042.08 and 361,410,317.28

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Solution

The fourth proportional to 643,723,014.24, 888,277,042.08 and 361,410,317.28 is: 498,712,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,723,014.24 : 888,277,042.08 = 361,410,317.28 : x
  2. Step 2: Convert to fraction form
    643,723,014.24/888,277,042.08 = 361,410,317.28/x
  3. Step 3: Cross multiply
    643,723,014.24x = 888,277,042.08 × 361,410,317.28
  4. Step 4: Simplify right side
    643,723,014.24x = 321,032,487,610,672,704
  5. Step 5: Solve for x
    x = 321,032,487,610,672,704/643,723,014.24
  6. Step 6: Final answer
    x = 498,712,148.72

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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.