Home / 85,762,731.66-128,633,458.86-50,768,668.68

Finding the Fourth Proportional to 85,762,731.66, 128,633,458.86 and 50,768,668.68

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Solution

The fourth proportional to 85,762,731.66, 128,633,458.86 and 50,768,668.68 is: 76,146,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,762,731.66 : 128,633,458.86 = 50,768,668.68 : x
  2. Step 2: Convert to fraction form
    85,762,731.66/128,633,458.86 = 50,768,668.68/x
  3. Step 3: Cross multiply
    85,762,731.66x = 128,633,458.86 × 50,768,668.68
  4. Step 4: Simplify right side
    85,762,731.66x = 6,530,549,454,025,750
  5. Step 5: Solve for x
    x = 6,530,549,454,025,750/85,762,731.66
  6. Step 6: Final answer
    x = 76,146,705.31

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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.