Home / 78,063,205.25-107,729,585.21-43,252,638.77

Finding the Fourth Proportional to 78,063,205.25, 107,729,585.21 and 43,252,638.77

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Solution

The fourth proportional to 78,063,205.25, 107,729,585.21 and 43,252,638.77 is: 59,689,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063,205.25 : 107,729,585.21 = 43,252,638.77 : x
  2. Step 2: Convert to fraction form
    78,063,205.25/107,729,585.21 = 43,252,638.77/x
  3. Step 3: Cross multiply
    78,063,205.25x = 107,729,585.21 × 43,252,638.77
  4. Step 4: Simplify right side
    78,063,205.25x = 4,659,588,833,713,802
  5. Step 5: Solve for x
    x = 4,659,588,833,713,802/78,063,205.25
  6. Step 6: Final answer
    x = 59,689,950.20

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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.