Home / 21,038,120,839.28-29,033,076,717.82-12,005,699,116.38

Finding the Fourth Proportional to 21,038,120,839.28, 29,033,076,717.82 and 12,005,699,116.38

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Solution

The fourth proportional to 21,038,120,839.28, 29,033,076,717.82 and 12,005,699,116.38 is: 16,568,132,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,120,839.28 : 29,033,076,717.82 = 12,005,699,116.38 : x
  2. Step 2: Convert to fraction form
    21,038,120,839.28/29,033,076,717.82 = 12,005,699,116.38/x
  3. Step 3: Cross multiply
    21,038,120,839.28x = 29,033,076,717.82 × 12,005,699,116.38
  4. Step 4: Simplify right side
    21,038,120,839.28x = 348,562,383,496,924,299,264
  5. Step 5: Solve for x
    x = 348,562,383,496,924,299,264/21,038,120,839.28
  6. Step 6: Final answer
    x = 16,568,132,969.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.