Home / 1,992,095,172.30-2,988,142,758.45-611,907,465.90

Finding the Fourth Proportional to 1,992,095,172.30, 2,988,142,758.45 and 611,907,465.90

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Solution

The fourth proportional to 1,992,095,172.30, 2,988,142,758.45 and 611,907,465.90 is: 917,861,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,095,172.30 : 2,988,142,758.45 = 611,907,465.90 : x
  2. Step 2: Convert to fraction form
    1,992,095,172.30/2,988,142,758.45 = 611,907,465.90/x
  3. Step 3: Cross multiply
    1,992,095,172.30x = 2,988,142,758.45 × 611,907,465.90
  4. Step 4: Simplify right side
    1,992,095,172.30x = 1,828,466,863,070,575,104
  5. Step 5: Solve for x
    x = 1,828,466,863,070,575,104/1,992,095,172.30
  6. Step 6: Final answer
    x = 917,861,198.85

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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.