Home / 257,905,515.60-386,858,273.40-166,072,510.80

Finding the Fourth Proportional to 257,905,515.60, 386,858,273.40 and 166,072,510.80

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Solution

The fourth proportional to 257,905,515.60, 386,858,273.40 and 166,072,510.80 is: 249,108,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,905,515.60 : 386,858,273.40 = 166,072,510.80 : x
  2. Step 2: Convert to fraction form
    257,905,515.60/386,858,273.40 = 166,072,510.80/x
  3. Step 3: Cross multiply
    257,905,515.60x = 386,858,273.40 × 166,072,510.80
  4. Step 4: Simplify right side
    257,905,515.60x = 64,246,524,787,290,856
  5. Step 5: Solve for x
    x = 64,246,524,787,290,856/257,905,515.60
  6. Step 6: Final answer
    x = 249,108,766.20

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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.