Home / 85,824,400.20-128,736,600.30-49,544,694.60

Finding the Fourth Proportional to 85,824,400.20, 128,736,600.30 and 49,544,694.60

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Solution

The fourth proportional to 85,824,400.20, 128,736,600.30 and 49,544,694.60 is: 74,317,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,400.20 : 128,736,600.30 = 49,544,694.60 : x
  2. Step 2: Convert to fraction form
    85,824,400.20/128,736,600.30 = 49,544,694.60/x
  3. Step 3: Cross multiply
    85,824,400.20x = 128,736,600.30 × 49,544,694.60
  4. Step 4: Simplify right side
    85,824,400.20x = 6,378,215,545,705,768
  5. Step 5: Solve for x
    x = 6,378,215,545,705,768/85,824,400.20
  6. Step 6: Final answer
    x = 74,317,041.90

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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.