Home / 3,989,101.80-5,983,499.10-1,329,709.80

Finding the Fourth Proportional to 3,989,101.80, 5,983,499.10 and 1,329,709.80

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Solution

The fourth proportional to 3,989,101.80, 5,983,499.10 and 1,329,709.80 is: 1,994,513.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,101.80 : 5,983,499.10 = 1,329,709.80 : x
  2. Step 2: Convert to fraction form
    3,989,101.80/5,983,499.10 = 1,329,709.80/x
  3. Step 3: Cross multiply
    3,989,101.80x = 5,983,499.10 × 1,329,709.80
  4. Step 4: Simplify right side
    3,989,101.80x = 7,956,317,391,561.18
  5. Step 5: Solve for x
    x = 7,956,317,391,561.18/3,989,101.80
  6. Step 6: Final answer
    x = 1,994,513.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.