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Finding the Fourth Proportional to 12,480,128, 18,720,192 and 3,024,512

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Solution

The fourth proportional to 12,480,128, 18,720,192 and 3,024,512 is: 4,536,768

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,128 : 18,720,192 = 3,024,512 : x
  2. Step 2: Convert to fraction form
    12,480,128/18,720,192 = 3,024,512/x
  3. Step 3: Cross multiply
    12,480,128x = 18,720,192 × 3,024,512
  4. Step 4: Simplify right side
    12,480,128x = 56,619,445,346,304
  5. Step 5: Solve for x
    x = 56,619,445,346,304/12,480,128
  6. Step 6: Final answer
    x = 4,536,768

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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.