Home / 13,603,146,115.30-20,404,719,172.95-12,828,305,137.30

Finding the Fourth Proportional to 13,603,146,115.30, 20,404,719,172.95 and 12,828,305,137.30

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Solution

The fourth proportional to 13,603,146,115.30, 20,404,719,172.95 and 12,828,305,137.30 is: 19,242,457,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603,146,115.30 : 20,404,719,172.95 = 12,828,305,137.30 : x
  2. Step 2: Convert to fraction form
    13,603,146,115.30/20,404,719,172.95 = 12,828,305,137.30/x
  3. Step 3: Cross multiply
    13,603,146,115.30x = 20,404,719,172.95 × 12,828,305,137.30
  4. Step 4: Simplify right side
    13,603,146,115.30x = 261,757,963,791,518,302,208
  5. Step 5: Solve for x
    x = 261,757,963,791,518,302,208/13,603,146,115.30
  6. Step 6: Final answer
    x = 19,242,457,705.95

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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.