Home / 140,513,321.69-193,928,676.75-80,963,216.91

Finding the Fourth Proportional to 140,513,321.69, 193,928,676.75 and 80,963,216.91

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Solution

The fourth proportional to 140,513,321.69, 193,928,676.75 and 80,963,216.91 is: 111,740,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,513,321.69 : 193,928,676.75 = 80,963,216.91 : x
  2. Step 2: Convert to fraction form
    140,513,321.69/193,928,676.75 = 80,963,216.91/x
  3. Step 3: Cross multiply
    140,513,321.69x = 193,928,676.75 × 80,963,216.91
  4. Step 4: Simplify right side
    140,513,321.69x = 15,701,089,520,374,708
  5. Step 5: Solve for x
    x = 15,701,089,520,374,708/140,513,321.69
  6. Step 6: Final answer
    x = 111,740,931.97

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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.