Home / 3,149,428,529.60-4,724,142,794.40-820,361,009.60

Finding the Fourth Proportional to 3,149,428,529.60, 4,724,142,794.40 and 820,361,009.60

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Solution

The fourth proportional to 3,149,428,529.60, 4,724,142,794.40 and 820,361,009.60 is: 1,230,541,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149,428,529.60 : 4,724,142,794.40 = 820,361,009.60 : x
  2. Step 2: Convert to fraction form
    3,149,428,529.60/4,724,142,794.40 = 820,361,009.60/x
  3. Step 3: Cross multiply
    3,149,428,529.60x = 4,724,142,794.40 × 820,361,009.60
  4. Step 4: Simplify right side
    3,149,428,529.60x = 3,875,502,552,308,549,120
  5. Step 5: Solve for x
    x = 3,875,502,552,308,549,120/3,149,428,529.60
  6. Step 6: Final answer
    x = 1,230,541,514.40

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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.