Home / 154,556,978.40-231,835,467.60-82,893,362.40

Finding the Fourth Proportional to 154,556,978.40, 231,835,467.60 and 82,893,362.40

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Solution

The fourth proportional to 154,556,978.40, 231,835,467.60 and 82,893,362.40 is: 124,340,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,556,978.40 : 231,835,467.60 = 82,893,362.40 : x
  2. Step 2: Convert to fraction form
    154,556,978.40/231,835,467.60 = 82,893,362.40/x
  3. Step 3: Cross multiply
    154,556,978.40x = 231,835,467.60 × 82,893,362.40
  4. Step 4: Simplify right side
    154,556,978.40x = 19,217,621,432,940,260
  5. Step 5: Solve for x
    x = 19,217,621,432,940,260/154,556,978.40
  6. Step 6: Final answer
    x = 124,340,043.60

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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.