Home / 121,129,205.61-167,158,984.50-68,918,241.27

Finding the Fourth Proportional to 121,129,205.61, 167,158,984.50 and 68,918,241.27

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Solution

The fourth proportional to 121,129,205.61, 167,158,984.50 and 68,918,241.27 is: 95,107,560.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,129,205.61 : 167,158,984.50 = 68,918,241.27 : x
  2. Step 2: Convert to fraction form
    121,129,205.61/167,158,984.50 = 68,918,241.27/x
  3. Step 3: Cross multiply
    121,129,205.61x = 167,158,984.50 × 68,918,241.27
  4. Step 4: Simplify right side
    121,129,205.61x = 11,520,303,224,219,190
  5. Step 5: Solve for x
    x = 11,520,303,224,219,190/121,129,205.61
  6. Step 6: Final answer
    x = 95,107,560.28

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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.