Home / 279,886,916.86-386,383,780.29-174,074,438.50

Finding the Fourth Proportional to 279,886,916.86, 386,383,780.29 and 174,074,438.50

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Solution

The fourth proportional to 279,886,916.86, 386,383,780.29 and 174,074,438.50 is: 240,309,694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,886,916.86 : 386,383,780.29 = 174,074,438.50 : x
  2. Step 2: Convert to fraction form
    279,886,916.86/386,383,780.29 = 174,074,438.50/x
  3. Step 3: Cross multiply
    279,886,916.86x = 386,383,780.29 × 174,074,438.50
  4. Step 4: Simplify right side
    279,886,916.86x = 67,259,539,599,489,120
  5. Step 5: Solve for x
    x = 67,259,539,599,489,120/279,886,916.86
  6. Step 6: Final answer
    x = 240,309,694.91

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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.