Home / 128,399,612.30-192,614,032.48-46,557,037.34

Finding the Fourth Proportional to 128,399,612.30, 192,614,032.48 and 46,557,037.34

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Solution

The fourth proportional to 128,399,612.30, 192,614,032.48 and 46,557,037.34 is: 69,840,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,399,612.30 : 192,614,032.48 = 46,557,037.34 : x
  2. Step 2: Convert to fraction form
    128,399,612.30/192,614,032.48 = 46,557,037.34/x
  3. Step 3: Cross multiply
    128,399,612.30x = 192,614,032.48 × 46,557,037.34
  4. Step 4: Simplify right side
    128,399,612.30x = 8,967,538,702,379,333
  5. Step 5: Solve for x
    x = 8,967,538,702,379,333/128,399,612.30
  6. Step 6: Final answer
    x = 69,840,854.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.