Home / 198,720,123.60-298,080,185.40-166,975,381.20

Finding the Fourth Proportional to 198,720,123.60, 298,080,185.40 and 166,975,381.20

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Solution

The fourth proportional to 198,720,123.60, 298,080,185.40 and 166,975,381.20 is: 250,463,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,720,123.60 : 298,080,185.40 = 166,975,381.20 : x
  2. Step 2: Convert to fraction form
    198,720,123.60/298,080,185.40 = 166,975,381.20/x
  3. Step 3: Cross multiply
    198,720,123.60x = 298,080,185.40 × 166,975,381.20
  4. Step 4: Simplify right side
    198,720,123.60x = 49,772,052,585,331,664
  5. Step 5: Solve for x
    x = 49,772,052,585,331,664/198,720,123.60
  6. Step 6: Final answer
    x = 250,463,071.80

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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.