Home / 76,804,805.60-115,339,918.80-40,972,997.60

Finding the Fourth Proportional to 76,804,805.60, 115,339,918.80 and 40,972,997.60

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Solution

The fourth proportional to 76,804,805.60, 115,339,918.80 and 40,972,997.60 is: 61,530,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,804,805.60 : 115,339,918.80 = 40,972,997.60 : x
  2. Step 2: Convert to fraction form
    76,804,805.60/115,339,918.80 = 40,972,997.60/x
  3. Step 3: Cross multiply
    76,804,805.60x = 115,339,918.80 × 40,972,997.60
  4. Step 4: Simplify right side
    76,804,805.60x = 4,725,822,216,176,595
  5. Step 5: Solve for x
    x = 4,725,822,216,176,595/76,804,805.60
  6. Step 6: Final answer
    x = 61,530,293.31

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1.5x scale

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.