Home / 166,464,010.20-249,696,015.30-85,842,442.20

Finding the Fourth Proportional to 166,464,010.20, 249,696,015.30 and 85,842,442.20

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Solution

The fourth proportional to 166,464,010.20, 249,696,015.30 and 85,842,442.20 is: 128,763,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,464,010.20 : 249,696,015.30 = 85,842,442.20 : x
  2. Step 2: Convert to fraction form
    166,464,010.20/249,696,015.30 = 85,842,442.20/x
  3. Step 3: Cross multiply
    166,464,010.20x = 249,696,015.30 × 85,842,442.20
  4. Step 4: Simplify right side
    166,464,010.20x = 21,434,515,760,960,568
  5. Step 5: Solve for x
    x = 21,434,515,760,960,568/166,464,010.20
  6. Step 6: Final answer
    x = 128,763,663.30

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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.