Home / 13,603,146,089.30-20,404,719,133.95-12,828,305,111.30

Finding the Fourth Proportional to 13,603,146,089.30, 20,404,719,133.95 and 12,828,305,111.30

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Solution

The fourth proportional to 13,603,146,089.30, 20,404,719,133.95 and 12,828,305,111.30 is: 19,242,457,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603,146,089.30 : 20,404,719,133.95 = 12,828,305,111.30 : x
  2. Step 2: Convert to fraction form
    13,603,146,089.30/20,404,719,133.95 = 12,828,305,111.30/x
  3. Step 3: Cross multiply
    13,603,146,089.30x = 20,404,719,133.95 × 12,828,305,111.30
  4. Step 4: Simplify right side
    13,603,146,089.30x = 261,757,962,760,691,679,232
  5. Step 5: Solve for x
    x = 261,757,962,760,691,679,232/13,603,146,089.30
  6. Step 6: Final answer
    x = 19,242,457,666.95

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Double scale
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Similar ratio
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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.