Home / 79,285,828.26-118,928,512.08-21,778,154.58

Finding the Fourth Proportional to 79,285,828.26, 118,928,512.08 and 21,778,154.58

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Solution

The fourth proportional to 79,285,828.26, 118,928,512.08 and 21,778,154.58 is: 32,667,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285,828.26 : 118,928,512.08 = 21,778,154.58 : x
  2. Step 2: Convert to fraction form
    79,285,828.26/118,928,512.08 = 21,778,154.58/x
  3. Step 3: Cross multiply
    79,285,828.26x = 118,928,512.08 × 21,778,154.58
  4. Step 4: Simplify right side
    79,285,828.26x = 2,590,043,520,047,637
  5. Step 5: Solve for x
    x = 2,590,043,520,047,637/79,285,828.26
  6. Step 6: Final answer
    x = 32,667,168.61

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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.