Home / 979,862,860.20-1,469,794,290.30-865,071,604.20

Finding the Fourth Proportional to 979,862,860.20, 1,469,794,290.30 and 865,071,604.20

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Solution

The fourth proportional to 979,862,860.20, 1,469,794,290.30 and 865,071,604.20 is: 1,297,607,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,862,860.20 : 1,469,794,290.30 = 865,071,604.20 : x
  2. Step 2: Convert to fraction form
    979,862,860.20/1,469,794,290.30 = 865,071,604.20/x
  3. Step 3: Cross multiply
    979,862,860.20x = 1,469,794,290.30 × 865,071,604.20
  4. Step 4: Simplify right side
    979,862,860.20x = 1,271,477,304,553,821,440
  5. Step 5: Solve for x
    x = 1,271,477,304,553,821,440/979,862,860.20
  6. Step 6: Final answer
    x = 1,297,607,406.30

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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.