Home / 1,328,184,617.20-1,992,276,925.80-408,059,479.60

Finding the Fourth Proportional to 1,328,184,617.20, 1,992,276,925.80 and 408,059,479.60

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Solution

The fourth proportional to 1,328,184,617.20, 1,992,276,925.80 and 408,059,479.60 is: 612,089,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,184,617.20 : 1,992,276,925.80 = 408,059,479.60 : x
  2. Step 2: Convert to fraction form
    1,328,184,617.20/1,992,276,925.80 = 408,059,479.60/x
  3. Step 3: Cross multiply
    1,328,184,617.20x = 1,992,276,925.80 × 408,059,479.60
  4. Step 4: Simplify right side
    1,328,184,617.20x = 812,967,485,561,035,904
  5. Step 5: Solve for x
    x = 812,967,485,561,035,904/1,328,184,617.20
  6. Step 6: Final answer
    x = 612,089,219.40

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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.