Home / 72,983,868.48-100,718,005.41-39,493,347.84

Finding the Fourth Proportional to 72,983,868.48, 100,718,005.41 and 39,493,347.84

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Solution

The fourth proportional to 72,983,868.48, 100,718,005.41 and 39,493,347.84 is: 54,500,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,983,868.48 : 100,718,005.41 = 39,493,347.84 : x
  2. Step 2: Convert to fraction form
    72,983,868.48/100,718,005.41 = 39,493,347.84/x
  3. Step 3: Cross multiply
    72,983,868.48x = 100,718,005.41 × 39,493,347.84
  4. Step 4: Simplify right side
    72,983,868.48x = 3,977,691,221,408,132
  5. Step 5: Solve for x
    x = 3,977,691,221,408,132/72,983,868.48
  6. Step 6: Final answer
    x = 54,500,964.45

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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.