Home / 168,506,999.80-252,760,499.70-82,200,981.40

Finding the Fourth Proportional to 168,506,999.80, 252,760,499.70 and 82,200,981.40

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Solution

The fourth proportional to 168,506,999.80, 252,760,499.70 and 82,200,981.40 is: 123,301,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,506,999.80 : 252,760,499.70 = 82,200,981.40 : x
  2. Step 2: Convert to fraction form
    168,506,999.80/252,760,499.70 = 82,200,981.40/x
  3. Step 3: Cross multiply
    168,506,999.80x = 252,760,499.70 × 82,200,981.40
  4. Step 4: Simplify right side
    168,506,999.80x = 20,777,161,134,494,408
  5. Step 5: Solve for x
    x = 20,777,161,134,494,408/168,506,999.80
  6. Step 6: Final answer
    x = 123,301,472.10

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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.