Home / 78,147,879.27-107,863,671.15-53,072,416.77

Finding the Fourth Proportional to 78,147,879.27, 107,863,671.15 and 53,072,416.77

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Solution

The fourth proportional to 78,147,879.27, 107,863,671.15 and 53,072,416.77 is: 73,253,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,147,879.27 : 107,863,671.15 = 53,072,416.77 : x
  2. Step 2: Convert to fraction form
    78,147,879.27/107,863,671.15 = 53,072,416.77/x
  3. Step 3: Cross multiply
    78,147,879.27x = 107,863,671.15 × 53,072,416.77
  4. Step 4: Simplify right side
    78,147,879.27x = 5,724,585,709,615,026
  5. Step 5: Solve for x
    x = 5,724,585,709,615,026/78,147,879.27
  6. Step 6: Final answer
    x = 73,253,244.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.