Home / 3,660,512,468.40-5,051,510,461.49-1,989,761,609.61

Finding the Fourth Proportional to 3,660,512,468.40, 5,051,510,461.49 and 1,989,761,609.61

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Solution

The fourth proportional to 3,660,512,468.40, 5,051,510,461.49 and 1,989,761,609.61 is: 2,745,872,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660,512,468.40 : 5,051,510,461.49 = 1,989,761,609.61 : x
  2. Step 2: Convert to fraction form
    3,660,512,468.40/5,051,510,461.49 = 1,989,761,609.61/x
  3. Step 3: Cross multiply
    3,660,512,468.40x = 5,051,510,461.49 × 1,989,761,609.61
  4. Step 4: Simplify right side
    3,660,512,468.40x = 10,051,301,586,806,147,072
  5. Step 5: Solve for x
    x = 10,051,301,586,806,147,072/3,660,512,468.40
  6. Step 6: Final answer
    x = 2,745,872,790.65

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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.