Home / 159,509,269.20-239,263,903.80-90,634,515.60

Finding the Fourth Proportional to 159,509,269.20, 239,263,903.80 and 90,634,515.60

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Solution

The fourth proportional to 159,509,269.20, 239,263,903.80 and 90,634,515.60 is: 135,951,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,509,269.20 : 239,263,903.80 = 90,634,515.60 : x
  2. Step 2: Convert to fraction form
    159,509,269.20/239,263,903.80 = 90,634,515.60/x
  3. Step 3: Cross multiply
    159,509,269.20x = 239,263,903.80 × 90,634,515.60
  4. Step 4: Simplify right side
    159,509,269.20x = 21,685,568,021,478,000
  5. Step 5: Solve for x
    x = 21,685,568,021,478,000/159,509,269.20
  6. Step 6: Final answer
    x = 135,951,773.40

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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.