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Finding the Fourth Proportional to 353,376,003.80, 530,064,005.70 and 200,320,995.80

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Solution

The fourth proportional to 353,376,003.80, 530,064,005.70 and 200,320,995.80 is: 300,481,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,376,003.80 : 530,064,005.70 = 200,320,995.80 : x
  2. Step 2: Convert to fraction form
    353,376,003.80/530,064,005.70 = 200,320,995.80/x
  3. Step 3: Cross multiply
    353,376,003.80x = 530,064,005.70 × 200,320,995.80
  4. Step 4: Simplify right side
    353,376,003.80x = 106,182,949,459,560,880
  5. Step 5: Solve for x
    x = 106,182,949,459,560,880/353,376,003.80
  6. Step 6: Final answer
    x = 300,481,493.70

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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.