Home / 1,485,874,187.20-2,228,811,280.80-840,901,643.20

Finding the Fourth Proportional to 1,485,874,187.20, 2,228,811,280.80 and 840,901,643.20

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Solution

The fourth proportional to 1,485,874,187.20, 2,228,811,280.80 and 840,901,643.20 is: 1,261,352,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,874,187.20 : 2,228,811,280.80 = 840,901,643.20 : x
  2. Step 2: Convert to fraction form
    1,485,874,187.20/2,228,811,280.80 = 840,901,643.20/x
  3. Step 3: Cross multiply
    1,485,874,187.20x = 2,228,811,280.80 × 840,901,643.20
  4. Step 4: Simplify right side
    1,485,874,187.20x = 1,874,211,068,407,416,832
  5. Step 5: Solve for x
    x = 1,874,211,068,407,416,832/1,485,874,187.20
  6. Step 6: Final answer
    x = 1,261,352,464.80

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Double scale
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1.5x scale

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.