Home / 78,024,930.31-107,674,530.99-42,741,960.94

Finding the Fourth Proportional to 78,024,930.31, 107,674,530.99 and 42,741,960.94

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Solution

The fourth proportional to 78,024,930.31, 107,674,530.99 and 42,741,960.94 is: 58,983,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,024,930.31 : 107,674,530.99 = 42,741,960.94 : x
  2. Step 2: Convert to fraction form
    78,024,930.31/107,674,530.99 = 42,741,960.94/x
  3. Step 3: Cross multiply
    78,024,930.31x = 107,674,530.99 × 42,741,960.94
  4. Step 4: Simplify right side
    78,024,930.31x = 4,602,220,597,983,600
  5. Step 5: Solve for x
    x = 4,602,220,597,983,600/78,024,930.31
  6. Step 6: Final answer
    x = 58,983,975.76

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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.