Home / 458,682,723.70-687,898,516.42-126,610,349.86

Finding the Fourth Proportional to 458,682,723.70, 687,898,516.42 and 126,610,349.86

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Solution

The fourth proportional to 458,682,723.70, 687,898,516.42 and 126,610,349.86 is: 189,880,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,682,723.70 : 687,898,516.42 = 126,610,349.86 : x
  2. Step 2: Convert to fraction form
    458,682,723.70/687,898,516.42 = 126,610,349.86/x
  3. Step 3: Cross multiply
    458,682,723.70x = 687,898,516.42 × 126,610,349.86
  4. Step 4: Simplify right side
    458,682,723.70x = 87,095,071,832,111,152
  5. Step 5: Solve for x
    x = 87,095,071,832,111,152/458,682,723.70
  6. Step 6: Final answer
    x = 189,880,863.90

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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.