Home / 78,515,866.61-108,352,697.76-43,236,952.38

Finding the Fourth Proportional to 78,515,866.61, 108,352,697.76 and 43,236,952.38

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Solution

The fourth proportional to 78,515,866.61, 108,352,697.76 and 43,236,952.38 is: 59,667,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,866.61 : 108,352,697.76 = 43,236,952.38 : x
  2. Step 2: Convert to fraction form
    78,515,866.61/108,352,697.76 = 43,236,952.38/x
  3. Step 3: Cross multiply
    78,515,866.61x = 108,352,697.76 × 43,236,952.38
  4. Step 4: Simplify right side
    78,515,866.61x = 4,684,840,433,293,653
  5. Step 5: Solve for x
    x = 4,684,840,433,293,653/78,515,866.61
  6. Step 6: Final answer
    x = 59,667,435.84

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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.