Home / 479,495,086.40-661,703,193.96-259,478,512.40

Finding the Fourth Proportional to 479,495,086.40, 661,703,193.96 and 259,478,512.40

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Solution

The fourth proportional to 479,495,086.40, 661,703,193.96 and 259,478,512.40 is: 358,080,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,495,086.40 : 661,703,193.96 = 259,478,512.40 : x
  2. Step 2: Convert to fraction form
    479,495,086.40/661,703,193.96 = 259,478,512.40/x
  3. Step 3: Cross multiply
    479,495,086.40x = 661,703,193.96 × 259,478,512.40
  4. Step 4: Simplify right side
    479,495,086.40x = 171,697,760,419,069,472
  5. Step 5: Solve for x
    x = 171,697,760,419,069,472/479,495,086.40
  6. Step 6: Final answer
    x = 358,080,333.44

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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.