Home / 72,236,453.75-99,686,006.20-42,891,942.23

Finding the Fourth Proportional to 72,236,453.75, 99,686,006.20 and 42,891,942.23

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Solution

The fourth proportional to 72,236,453.75, 99,686,006.20 and 42,891,942.23 is: 59,190,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,236,453.75 : 99,686,006.20 = 42,891,942.23 : x
  2. Step 2: Convert to fraction form
    72,236,453.75/99,686,006.20 = 42,891,942.23/x
  3. Step 3: Cross multiply
    72,236,453.75x = 99,686,006.20 × 42,891,942.23
  4. Step 4: Simplify right side
    72,236,453.75x = 4,275,726,419,069,821.50
  5. Step 5: Solve for x
    x = 4,275,726,419,069,821.50/72,236,453.75
  6. Step 6: Final answer
    x = 59,190,702.16

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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.