Home / 78,023,511.08-107,672,443.28-43,218,443.52

Finding the Fourth Proportional to 78,023,511.08, 107,672,443.28 and 43,218,443.52

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Solution

The fourth proportional to 78,023,511.08, 107,672,443.28 and 43,218,443.52 is: 59,641,450.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,023,511.08 : 107,672,443.28 = 43,218,443.52 : x
  2. Step 2: Convert to fraction form
    78,023,511.08/107,672,443.28 = 43,218,443.52/x
  3. Step 3: Cross multiply
    78,023,511.08x = 107,672,443.28 × 43,218,443.52
  4. Step 4: Simplify right side
    78,023,511.08x = 4,653,435,408,557,084
  5. Step 5: Solve for x
    x = 4,653,435,408,557,084/78,023,511.08
  6. Step 6: Final answer
    x = 59,641,450.94

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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.