Home / 1,245,410,303.60-1,868,115,455.40-787,379,020.40

Finding the Fourth Proportional to 1,245,410,303.60, 1,868,115,455.40 and 787,379,020.40

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Solution

The fourth proportional to 1,245,410,303.60, 1,868,115,455.40 and 787,379,020.40 is: 1,181,068,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,410,303.60 : 1,868,115,455.40 = 787,379,020.40 : x
  2. Step 2: Convert to fraction form
    1,245,410,303.60/1,868,115,455.40 = 787,379,020.40/x
  3. Step 3: Cross multiply
    1,245,410,303.60x = 1,868,115,455.40 × 787,379,020.40
  4. Step 4: Simplify right side
    1,245,410,303.60x = 1,470,914,917,266,951,936
  5. Step 5: Solve for x
    x = 1,470,914,917,266,951,936/1,245,410,303.60
  6. Step 6: Final answer
    x = 1,181,068,530.60

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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.