Home / 808,733,847.60-1,213,100,771.40-776,989,105.20

Finding the Fourth Proportional to 808,733,847.60, 1,213,100,771.40 and 776,989,105.20

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Solution

The fourth proportional to 808,733,847.60, 1,213,100,771.40 and 776,989,105.20 is: 1,165,483,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,733,847.60 : 1,213,100,771.40 = 776,989,105.20 : x
  2. Step 2: Convert to fraction form
    808,733,847.60/1,213,100,771.40 = 776,989,105.20/x
  3. Step 3: Cross multiply
    808,733,847.60x = 1,213,100,771.40 × 776,989,105.20
  4. Step 4: Simplify right side
    808,733,847.60x = 942,566,082,887,515,904
  5. Step 5: Solve for x
    x = 942,566,082,887,515,904/808,733,847.60
  6. Step 6: Final answer
    x = 1,165,483,657.80

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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.