Home / 72,439,260.80-108,658,891.20-49,481,009.60

Finding the Fourth Proportional to 72,439,260.80, 108,658,891.20 and 49,481,009.60

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Solution

The fourth proportional to 72,439,260.80, 108,658,891.20 and 49,481,009.60 is: 74,221,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439,260.80 : 108,658,891.20 = 49,481,009.60 : x
  2. Step 2: Convert to fraction form
    72,439,260.80/108,658,891.20 = 49,481,009.60/x
  3. Step 3: Cross multiply
    72,439,260.80x = 108,658,891.20 × 49,481,009.60
  4. Step 4: Simplify right side
    72,439,260.80x = 5,376,551,638,592,556
  5. Step 5: Solve for x
    x = 5,376,551,638,592,556/72,439,260.80
  6. Step 6: Final answer
    x = 74,221,514.40

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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.