Home / 78,023,513.58-107,672,446.73-43,218,446.02

Finding the Fourth Proportional to 78,023,513.58, 107,672,446.73 and 43,218,446.02

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Solution

The fourth proportional to 78,023,513.58, 107,672,446.73 and 43,218,446.02 is: 59,641,454.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,023,513.58 : 107,672,446.73 = 43,218,446.02 : x
  2. Step 2: Convert to fraction form
    78,023,513.58/107,672,446.73 = 43,218,446.02/x
  3. Step 3: Cross multiply
    78,023,513.58x = 107,672,446.73 × 43,218,446.02
  4. Step 4: Simplify right side
    78,023,513.58x = 4,653,435,826,841,831
  5. Step 5: Solve for x
    x = 4,653,435,826,841,831/78,023,513.58
  6. Step 6: Final answer
    x = 59,641,454.39

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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.