Home / 78,286,520.23-108,036,735.99-43,005,811.93

Finding the Fourth Proportional to 78,286,520.23, 108,036,735.99 and 43,005,811.93

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Solution

The fourth proportional to 78,286,520.23, 108,036,735.99 and 43,005,811.93 is: 59,348,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,286,520.23 : 108,036,735.99 = 43,005,811.93 : x
  2. Step 2: Convert to fraction form
    78,286,520.23/108,036,735.99 = 43,005,811.93/x
  3. Step 3: Cross multiply
    78,286,520.23x = 108,036,735.99 × 43,005,811.93
  4. Step 4: Simplify right side
    78,286,520.23x = 4,646,207,548,976,818
  5. Step 5: Solve for x
    x = 4,646,207,548,976,818/78,286,520.23
  6. Step 6: Final answer
    x = 59,348,755.52

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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.