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Finding the Fourth Proportional to 128,832,136.20, 193,248,204.30 and 128,832,136.20

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Solution

The fourth proportional to 128,832,136.20, 193,248,204.30 and 128,832,136.20 is: 193,248,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,832,136.20 : 193,248,204.30 = 128,832,136.20 : x
  2. Step 2: Convert to fraction form
    128,832,136.20/193,248,204.30 = 128,832,136.20/x
  3. Step 3: Cross multiply
    128,832,136.20x = 193,248,204.30 × 128,832,136.20
  4. Step 4: Simplify right side
    128,832,136.20x = 24,896,578,976,783,028
  5. Step 5: Solve for x
    x = 24,896,578,976,783,028/128,832,136.20
  6. Step 6: Final answer
    x = 193,248,204.30

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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.