Home / 72,983,868.80-100,718,005.86-39,493,348.16

Finding the Fourth Proportional to 72,983,868.80, 100,718,005.86 and 39,493,348.16

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Solution

The fourth proportional to 72,983,868.80, 100,718,005.86 and 39,493,348.16 is: 54,500,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,983,868.80 : 100,718,005.86 = 39,493,348.16 : x
  2. Step 2: Convert to fraction form
    72,983,868.80/100,718,005.86 = 39,493,348.16/x
  3. Step 3: Cross multiply
    72,983,868.80x = 100,718,005.86 × 39,493,348.16
  4. Step 4: Simplify right side
    72,983,868.80x = 3,977,691,271,409,900
  5. Step 5: Solve for x
    x = 3,977,691,271,409,900/72,983,868.80
  6. Step 6: Final answer
    x = 54,500,964.90

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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.