Home / 809,858,875.44-1,117,599,683.85-438,572,410.32

Finding the Fourth Proportional to 809,858,875.44, 1,117,599,683.85 and 438,572,410.32

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Solution

The fourth proportional to 809,858,875.44, 1,117,599,683.85 and 438,572,410.32 is: 605,226,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,858,875.44 : 1,117,599,683.85 = 438,572,410.32 : x
  2. Step 2: Convert to fraction form
    809,858,875.44/1,117,599,683.85 = 438,572,410.32/x
  3. Step 3: Cross multiply
    809,858,875.44x = 1,117,599,683.85 × 438,572,410.32
  4. Step 4: Simplify right side
    809,858,875.44x = 490,148,387,118,964,416
  5. Step 5: Solve for x
    x = 490,148,387,118,964,416/809,858,875.44
  6. Step 6: Final answer
    x = 605,226,912.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.