Home / 72,166,436.20-99,493,340.52-57,330,984.32

Finding the Fourth Proportional to 72,166,436.20, 99,493,340.52 and 57,330,984.32

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Solution

The fourth proportional to 72,166,436.20, 99,493,340.52 and 57,330,984.32 is: 79,040,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,166,436.20 : 99,493,340.52 = 57,330,984.32 : x
  2. Step 2: Convert to fraction form
    72,166,436.20/99,493,340.52 = 57,330,984.32/x
  3. Step 3: Cross multiply
    72,166,436.20x = 99,493,340.52 × 57,330,984.32
  4. Step 4: Simplify right side
    72,166,436.20x = 5,704,051,145,296,540
  5. Step 5: Solve for x
    x = 5,704,051,145,296,540/72,166,436.20
  6. Step 6: Final answer
    x = 79,040,222.10

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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.