Home / 1,998,432,668.80-2,997,649,003.20-1,784,155,657.60

Finding the Fourth Proportional to 1,998,432,668.80, 2,997,649,003.20 and 1,784,155,657.60

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Solution

The fourth proportional to 1,998,432,668.80, 2,997,649,003.20 and 1,784,155,657.60 is: 2,676,233,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,432,668.80 : 2,997,649,003.20 = 1,784,155,657.60 : x
  2. Step 2: Convert to fraction form
    1,998,432,668.80/2,997,649,003.20 = 1,784,155,657.60/x
  3. Step 3: Cross multiply
    1,998,432,668.80x = 2,997,649,003.20 × 1,784,155,657.60
  4. Step 4: Simplify right side
    1,998,432,668.80x = 5,348,272,428,558,279,680
  5. Step 5: Solve for x
    x = 5,348,272,428,558,279,680/1,998,432,668.80
  6. Step 6: Final answer
    x = 2,676,233,486.40

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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.