Home / 1,778,112,081.60-2,667,168,122.40-485,647,569.60

Finding the Fourth Proportional to 1,778,112,081.60, 2,667,168,122.40 and 485,647,569.60

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Solution

The fourth proportional to 1,778,112,081.60, 2,667,168,122.40 and 485,647,569.60 is: 728,471,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,112,081.60 : 2,667,168,122.40 = 485,647,569.60 : x
  2. Step 2: Convert to fraction form
    1,778,112,081.60/2,667,168,122.40 = 485,647,569.60/x
  3. Step 3: Cross multiply
    1,778,112,081.60x = 2,667,168,122.40 × 485,647,569.60
  4. Step 4: Simplify right side
    1,778,112,081.60x = 1,295,303,716,358,155,520
  5. Step 5: Solve for x
    x = 1,295,303,716,358,155,520/1,778,112,081.60
  6. Step 6: Final answer
    x = 728,471,354.40

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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.