Home / 256,607,998.20-384,911,997.30-65,131,774.20

Finding the Fourth Proportional to 256,607,998.20, 384,911,997.30 and 65,131,774.20

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Solution

The fourth proportional to 256,607,998.20, 384,911,997.30 and 65,131,774.20 is: 97,697,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607,998.20 : 384,911,997.30 = 65,131,774.20 : x
  2. Step 2: Convert to fraction form
    256,607,998.20/384,911,997.30 = 65,131,774.20/x
  3. Step 3: Cross multiply
    256,607,998.20x = 384,911,997.30 × 65,131,774.20
  4. Step 4: Simplify right side
    256,607,998.20x = 25,070,001,295,014,612
  5. Step 5: Solve for x
    x = 25,070,001,295,014,612/256,607,998.20
  6. Step 6: Final answer
    x = 97,697,661.30

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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.