Home / 77,691,339.86-107,214,059.50-42,884,036.87

Finding the Fourth Proportional to 77,691,339.86, 107,214,059.50 and 42,884,036.87

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Solution

The fourth proportional to 77,691,339.86, 107,214,059.50 and 42,884,036.87 is: 59,179,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691,339.86 : 107,214,059.50 = 42,884,036.87 : x
  2. Step 2: Convert to fraction form
    77,691,339.86/107,214,059.50 = 42,884,036.87/x
  3. Step 3: Cross multiply
    77,691,339.86x = 107,214,059.50 × 42,884,036.87
  4. Step 4: Simplify right side
    77,691,339.86x = 4,597,771,680,580,373
  5. Step 5: Solve for x
    x = 4,597,771,680,580,373/77,691,339.86
  6. Step 6: Final answer
    x = 59,179,976.67

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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.