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Finding the Fourth Proportional to 342,658,793.80, 472,877,359.86 and 186,032,502.28

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Solution

The fourth proportional to 342,658,793.80, 472,877,359.86 and 186,032,502.28 is: 256,729,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,658,793.80 : 472,877,359.86 = 186,032,502.28 : x
  2. Step 2: Convert to fraction form
    342,658,793.80/472,877,359.86 = 186,032,502.28/x
  3. Step 3: Cross multiply
    342,658,793.80x = 472,877,359.86 × 186,032,502.28
  4. Step 4: Simplify right side
    342,658,793.80x = 87,970,558,526,315,840
  5. Step 5: Solve for x
    x = 87,970,558,526,315,840/342,658,793.80
  6. Step 6: Final answer
    x = 256,729,318.25

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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.