Home / 2,640,151,990.70-3,960,227,986.05-1,329,547,625.90

Finding the Fourth Proportional to 2,640,151,990.70, 3,960,227,986.05 and 1,329,547,625.90

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Solution

The fourth proportional to 2,640,151,990.70, 3,960,227,986.05 and 1,329,547,625.90 is: 1,994,321,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,151,990.70 : 3,960,227,986.05 = 1,329,547,625.90 : x
  2. Step 2: Convert to fraction form
    2,640,151,990.70/3,960,227,986.05 = 1,329,547,625.90/x
  3. Step 3: Cross multiply
    2,640,151,990.70x = 3,960,227,986.05 × 1,329,547,625.90
  4. Step 4: Simplify right side
    2,640,151,990.70x = 5,265,311,716,875,516,928
  5. Step 5: Solve for x
    x = 5,265,311,716,875,516,928/2,640,151,990.70
  6. Step 6: Final answer
    x = 1,994,321,438.85

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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.