Home / 1,245,409,984.60-1,868,114,976.90-787,378,701.40

Finding the Fourth Proportional to 1,245,409,984.60, 1,868,114,976.90 and 787,378,701.40

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Solution

The fourth proportional to 1,245,409,984.60, 1,868,114,976.90 and 787,378,701.40 is: 1,181,068,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,409,984.60 : 1,868,114,976.90 = 787,378,701.40 : x
  2. Step 2: Convert to fraction form
    1,245,409,984.60/1,868,114,976.90 = 787,378,701.40/x
  3. Step 3: Cross multiply
    1,245,409,984.60x = 1,868,114,976.90 × 787,378,701.40
  4. Step 4: Simplify right side
    1,245,409,984.60x = 1,470,913,944,577,413,120
  5. Step 5: Solve for x
    x = 1,470,913,944,577,413,120/1,245,409,984.60
  6. Step 6: Final answer
    x = 1,181,068,052.10

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Double scale
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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.