Home / 85,824,277.80-128,736,416.70-37,356,858.60

Finding the Fourth Proportional to 85,824,277.80, 128,736,416.70 and 37,356,858.60

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Solution

The fourth proportional to 85,824,277.80, 128,736,416.70 and 37,356,858.60 is: 56,035,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,277.80 : 128,736,416.70 = 37,356,858.60 : x
  2. Step 2: Convert to fraction form
    85,824,277.80/128,736,416.70 = 37,356,858.60/x
  3. Step 3: Cross multiply
    85,824,277.80x = 128,736,416.70 × 37,356,858.60
  4. Step 4: Simplify right side
    85,824,277.80x = 4,809,188,115,332,579
  5. Step 5: Solve for x
    x = 4,809,188,115,332,579/85,824,277.80
  6. Step 6: Final answer
    x = 56,035,287.90

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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.