Home / 168,151,421.40-252,227,132.10-90,667,323.60

Finding the Fourth Proportional to 168,151,421.40, 252,227,132.10 and 90,667,323.60

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Solution

The fourth proportional to 168,151,421.40, 252,227,132.10 and 90,667,323.60 is: 136,000,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,151,421.40 : 252,227,132.10 = 90,667,323.60 : x
  2. Step 2: Convert to fraction form
    168,151,421.40/252,227,132.10 = 90,667,323.60/x
  3. Step 3: Cross multiply
    168,151,421.40x = 252,227,132.10 × 90,667,323.60
  4. Step 4: Simplify right side
    168,151,421.40x = 22,868,759,006,810,644
  5. Step 5: Solve for x
    x = 22,868,759,006,810,644/168,151,421.40
  6. Step 6: Final answer
    x = 136,000,985.40

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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.