Home / 510,410,138.40-765,615,207.60-251,749,274.40

Finding the Fourth Proportional to 510,410,138.40, 765,615,207.60 and 251,749,274.40

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Solution

The fourth proportional to 510,410,138.40, 765,615,207.60 and 251,749,274.40 is: 377,623,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,410,138.40 : 765,615,207.60 = 251,749,274.40 : x
  2. Step 2: Convert to fraction form
    510,410,138.40/765,615,207.60 = 251,749,274.40/x
  3. Step 3: Cross multiply
    510,410,138.40x = 765,615,207.60 × 251,749,274.40
  4. Step 4: Simplify right side
    510,410,138.40x = 192,743,072,982,905,376
  5. Step 5: Solve for x
    x = 192,743,072,982,905,376/510,410,138.40
  6. Step 6: Final answer
    x = 377,623,911.60

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1.5x scale

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.