Home / 5,199,510,920.80-7,175,325,070.84-2,971,890,939.28

Finding the Fourth Proportional to 5,199,510,920.80, 7,175,325,070.84 and 2,971,890,939.28

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Solution

The fourth proportional to 5,199,510,920.80, 7,175,325,070.84 and 2,971,890,939.28 is: 4,101,209,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199,510,920.80 : 7,175,325,070.84 = 2,971,890,939.28 : x
  2. Step 2: Convert to fraction form
    5,199,510,920.80/7,175,325,070.84 = 2,971,890,939.28/x
  3. Step 3: Cross multiply
    5,199,510,920.80x = 7,175,325,070.84 × 2,971,890,939.28
  4. Step 4: Simplify right side
    5,199,510,920.80x = 21,324,283,564,418,023,424
  5. Step 5: Solve for x
    x = 21,324,283,564,418,023,424/5,199,510,920.80
  6. Step 6: Final answer
    x = 4,101,209,496.28

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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.