Home / 78,023,513.08-107,672,446.04-43,218,445.52

Finding the Fourth Proportional to 78,023,513.08, 107,672,446.04 and 43,218,445.52

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Solution

The fourth proportional to 78,023,513.08, 107,672,446.04 and 43,218,445.52 is: 59,641,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,023,513.08 : 107,672,446.04 = 43,218,445.52 : x
  2. Step 2: Convert to fraction form
    78,023,513.08/107,672,446.04 = 43,218,445.52/x
  3. Step 3: Cross multiply
    78,023,513.08x = 107,672,446.04 × 43,218,445.52
  4. Step 4: Simplify right side
    78,023,513.08x = 4,653,435,743,184,880
  5. Step 5: Solve for x
    x = 4,653,435,743,184,880/78,023,513.08
  6. Step 6: Final answer
    x = 59,641,453.70

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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.