Home / 85,422,121.37-128,179,828.85-36,230,323.12

Finding the Fourth Proportional to 85,422,121.37, 128,179,828.85 and 36,230,323.12

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Solution

The fourth proportional to 85,422,121.37, 128,179,828.85 and 36,230,323.12 is: 54,365,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,422,121.37 : 128,179,828.85 = 36,230,323.12 : x
  2. Step 2: Convert to fraction form
    85,422,121.37/128,179,828.85 = 36,230,323.12/x
  3. Step 3: Cross multiply
    85,422,121.37x = 128,179,828.85 × 36,230,323.12
  4. Step 4: Simplify right side
    85,422,121.37x = 4,643,996,616,921,209
  5. Step 5: Solve for x
    x = 4,643,996,616,921,209/85,422,121.37
  6. Step 6: Final answer
    x = 54,365,269.12

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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.