Home / 1,478,629,501.60-2,217,944,252.40-388,222,794.40

Finding the Fourth Proportional to 1,478,629,501.60, 2,217,944,252.40 and 388,222,794.40

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Solution

The fourth proportional to 1,478,629,501.60, 2,217,944,252.40 and 388,222,794.40 is: 582,334,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,629,501.60 : 2,217,944,252.40 = 388,222,794.40 : x
  2. Step 2: Convert to fraction form
    1,478,629,501.60/2,217,944,252.40 = 388,222,794.40/x
  3. Step 3: Cross multiply
    1,478,629,501.60x = 2,217,944,252.40 × 388,222,794.40
  4. Step 4: Simplify right side
    1,478,629,501.60x = 861,056,515,490,146,944
  5. Step 5: Solve for x
    x = 861,056,515,490,146,944/1,478,629,501.60
  6. Step 6: Final answer
    x = 582,334,191.60

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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.