Home / 170,817,811.60-256,226,717.40-78,701,371.60

Finding the Fourth Proportional to 170,817,811.60, 256,226,717.40 and 78,701,371.60

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Solution

The fourth proportional to 170,817,811.60, 256,226,717.40 and 78,701,371.60 is: 118,052,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,817,811.60 : 256,226,717.40 = 78,701,371.60 : x
  2. Step 2: Convert to fraction form
    170,817,811.60/256,226,717.40 = 78,701,371.60/x
  3. Step 3: Cross multiply
    170,817,811.60x = 256,226,717.40 × 78,701,371.60
  4. Step 4: Simplify right side
    170,817,811.60x = 20,165,394,099,945,584
  5. Step 5: Solve for x
    x = 20,165,394,099,945,584/170,817,811.60
  6. Step 6: Final answer
    x = 118,052,057.40

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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.