Home / 128,503,727.54-192,773,893.76-39,879,955.16

Finding the Fourth Proportional to 128,503,727.54, 192,773,893.76 and 39,879,955.16

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Solution

The fourth proportional to 128,503,727.54, 192,773,893.76 and 39,879,955.16 is: 59,825,612.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,503,727.54 : 192,773,893.76 = 39,879,955.16 : x
  2. Step 2: Convert to fraction form
    128,503,727.54/192,773,893.76 = 39,879,955.16/x
  3. Step 3: Cross multiply
    128,503,727.54x = 192,773,893.76 × 39,879,955.16
  4. Step 4: Simplify right side
    128,503,727.54x = 7,687,814,238,876,586
  5. Step 5: Solve for x
    x = 7,687,814,238,876,586/128,503,727.54
  6. Step 6: Final answer
    x = 59,825,612.74

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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.