Home / 172,065,769.55-258,098,420.60-79,899,109.05

Finding the Fourth Proportional to 172,065,769.55, 258,098,420.60 and 79,899,109.05

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Solution

The fourth proportional to 172,065,769.55, 258,098,420.60 and 79,899,109.05 is: 119,848,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,065,769.55 : 258,098,420.60 = 79,899,109.05 : x
  2. Step 2: Convert to fraction form
    172,065,769.55/258,098,420.60 = 79,899,109.05/x
  3. Step 3: Cross multiply
    172,065,769.55x = 258,098,420.60 × 79,899,109.05
  4. Step 4: Simplify right side
    172,065,769.55x = 20,621,833,852,343,044
  5. Step 5: Solve for x
    x = 20,621,833,852,343,044/172,065,769.55
  6. Step 6: Final answer
    x = 119,848,555.04

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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.