Home / 207,330,894.12-310,997,503.78-69,156,121.89

Finding the Fourth Proportional to 207,330,894.12, 310,997,503.78 and 69,156,121.89

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Solution

The fourth proportional to 207,330,894.12, 310,997,503.78 and 69,156,121.89 is: 103,734,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,330,894.12 : 310,997,503.78 = 69,156,121.89 : x
  2. Step 2: Convert to fraction form
    207,330,894.12/310,997,503.78 = 69,156,121.89/x
  3. Step 3: Cross multiply
    207,330,894.12x = 310,997,503.78 × 69,156,121.89
  4. Step 4: Simplify right side
    207,330,894.12x = 21,507,381,278,120,696
  5. Step 5: Solve for x
    x = 21,507,381,278,120,696/207,330,894.12
  6. Step 6: Final answer
    x = 103,734,570.62

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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.