Home / 238,946,231.74-358,457,138.96-85,588,892.86

Finding the Fourth Proportional to 238,946,231.74, 358,457,138.96 and 85,588,892.86

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Solution

The fourth proportional to 238,946,231.74, 358,457,138.96 and 85,588,892.86 is: 128,396,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,946,231.74 : 358,457,138.96 = 85,588,892.86 : x
  2. Step 2: Convert to fraction form
    238,946,231.74/358,457,138.96 = 85,588,892.86/x
  3. Step 3: Cross multiply
    238,946,231.74x = 358,457,138.96 × 85,588,892.86
  4. Step 4: Simplify right side
    238,946,231.74x = 30,679,949,661,349,568
  5. Step 5: Solve for x
    x = 30,679,949,661,349,568/238,946,231.74
  6. Step 6: Final answer
    x = 128,396,875.89

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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.