Home / 85,475,840.32-128,225,735.52-27,972,631.36

Finding the Fourth Proportional to 85,475,840.32, 128,225,735.52 and 27,972,631.36

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Solution

The fourth proportional to 85,475,840.32, 128,225,735.52 and 27,972,631.36 is: 41,962,865.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,475,840.32 : 128,225,735.52 = 27,972,631.36 : x
  2. Step 2: Convert to fraction form
    85,475,840.32/128,225,735.52 = 27,972,631.36/x
  3. Step 3: Cross multiply
    85,475,840.32x = 128,225,735.52 × 27,972,631.36
  4. Step 4: Simplify right side
    85,475,840.32x = 3,586,811,230,565,817.50
  5. Step 5: Solve for x
    x = 3,586,811,230,565,817.50/85,475,840.32
  6. Step 6: Final answer
    x = 41,962,865.96

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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.