Home / 422,729,337.60-634,094,006.40-193,146,825.60

Finding the Fourth Proportional to 422,729,337.60, 634,094,006.40 and 193,146,825.60

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Solution

The fourth proportional to 422,729,337.60, 634,094,006.40 and 193,146,825.60 is: 289,720,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,729,337.60 : 634,094,006.40 = 193,146,825.60 : x
  2. Step 2: Convert to fraction form
    422,729,337.60/634,094,006.40 = 193,146,825.60/x
  3. Step 3: Cross multiply
    422,729,337.60x = 634,094,006.40 × 193,146,825.60
  4. Step 4: Simplify right side
    422,729,337.60x = 122,473,244,468,146,080
  5. Step 5: Solve for x
    x = 122,473,244,468,146,080/422,729,337.60
  6. Step 6: Final answer
    x = 289,720,238.40

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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.