Home / 13,166,138,149.46-18,169,270,647.42-7,144,643,553.42

Finding the Fourth Proportional to 13,166,138,149.46, 18,169,270,647.42 and 7,144,643,553.42

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Solution

The fourth proportional to 13,166,138,149.46, 18,169,270,647.42 and 7,144,643,553.42 is: 9,859,608,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166,138,149.46 : 18,169,270,647.42 = 7,144,643,553.42 : x
  2. Step 2: Convert to fraction form
    13,166,138,149.46/18,169,270,647.42 = 7,144,643,553.42/x
  3. Step 3: Cross multiply
    13,166,138,149.46x = 18,169,270,647.42 × 7,144,643,553.42
  4. Step 4: Simplify right side
    13,166,138,149.46x = 129,812,962,401,432,518,656
  5. Step 5: Solve for x
    x = 129,812,962,401,432,518,656/13,166,138,149.46
  6. Step 6: Final answer
    x = 9,859,608,104.35

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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.