Home / 479,393,279.13-661,374,493.73-278,415,941.22

Finding the Fourth Proportional to 479,393,279.13, 661,374,493.73 and 278,415,941.22

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Solution

The fourth proportional to 479,393,279.13, 661,374,493.73 and 278,415,941.22 is: 384,104,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,393,279.13 : 661,374,493.73 = 278,415,941.22 : x
  2. Step 2: Convert to fraction form
    479,393,279.13/661,374,493.73 = 278,415,941.22/x
  3. Step 3: Cross multiply
    479,393,279.13x = 661,374,493.73 × 278,415,941.22
  4. Step 4: Simplify right side
    479,393,279.13x = 184,137,202,169,346,880
  5. Step 5: Solve for x
    x = 184,137,202,169,346,880/479,393,279.13
  6. Step 6: Final answer
    x = 384,104,680.20

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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.