Home / 77,691,342.86-107,214,063.64-42,884,039.86

Finding the Fourth Proportional to 77,691,342.86, 107,214,063.64 and 42,884,039.86

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Solution

The fourth proportional to 77,691,342.86, 107,214,063.64 and 42,884,039.86 is: 59,179,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691,342.86 : 107,214,063.64 = 42,884,039.86 : x
  2. Step 2: Convert to fraction form
    77,691,342.86/107,214,063.64 = 42,884,039.86/x
  3. Step 3: Cross multiply
    77,691,342.86x = 107,214,063.64 × 42,884,039.86
  4. Step 4: Simplify right side
    77,691,342.86x = 4,597,772,178,690,337
  5. Step 5: Solve for x
    x = 4,597,772,178,690,337/77,691,342.86
  6. Step 6: Final answer
    x = 59,179,980.80

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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.