Home / 1,991,763,210.40-2,985,629,276.40-1,173,454,295.20

Finding the Fourth Proportional to 1,991,763,210.40, 2,985,629,276.40 and 1,173,454,295.20

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Solution

The fourth proportional to 1,991,763,210.40, 2,985,629,276.40 and 1,173,454,295.20 is: 1,758,993,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,763,210.40 : 2,985,629,276.40 = 1,173,454,295.20 : x
  2. Step 2: Convert to fraction form
    1,991,763,210.40/2,985,629,276.40 = 1,173,454,295.20/x
  3. Step 3: Cross multiply
    1,991,763,210.40x = 2,985,629,276.40 × 1,173,454,295.20
  4. Step 4: Simplify right side
    1,991,763,210.40x = 3,503,499,498,266,448,384
  5. Step 5: Solve for x
    x = 3,503,499,498,266,448,384/1,991,763,210.40
  6. Step 6: Final answer
    x = 1,758,993,980.80

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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.