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Finding the Third Proportional to 254,893,728.66 and 393,600,520.69

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Solution

The third proportional to 254,893,728.66 and 393,600,520.69 is: 607,788,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,893,728.66 : 393,600,520.69 = 393,600,520.69 : x
  2. Step 2: Convert to fraction form
    254,893,728.66/393,600,520.69 = 393,600,520.69/x
  3. Step 3: Cross multiply
    254,893,728.66x = 393,600,520.69 × 393,600,520.69
  4. Step 4: Simplify right side
    254,893,728.66x = 154,921,369,885,471,104
  5. Step 5: Solve for x
    x = 154,921,369,885,471,104/254,893,728.66
  6. Step 6: Final answer
    x = 607,788,079.77

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.