Home / 399,641,285.42-551,476,976.67-232,365,679.20

Finding the Fourth Proportional to 399,641,285.42, 551,476,976.67 and 232,365,679.20

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Solution

The fourth proportional to 399,641,285.42, 551,476,976.67 and 232,365,679.20 is: 320,648,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,641,285.42 : 551,476,976.67 = 232,365,679.20 : x
  2. Step 2: Convert to fraction form
    399,641,285.42/551,476,976.67 = 232,365,679.20/x
  3. Step 3: Cross multiply
    399,641,285.42x = 551,476,976.67 × 232,365,679.20
  4. Step 4: Simplify right side
    399,641,285.42x = 128,144,322,248,835,120
  5. Step 5: Solve for x
    x = 128,144,322,248,835,120/399,641,285.42
  6. Step 6: Final answer
    x = 320,648,358.73

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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.