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Finding the Fourth Proportional to 201,852,611.80, 302,778,917.70 and 165,980,344.30

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Solution

The fourth proportional to 201,852,611.80, 302,778,917.70 and 165,980,344.30 is: 248,970,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,852,611.80 : 302,778,917.70 = 165,980,344.30 : x
  2. Step 2: Convert to fraction form
    201,852,611.80/302,778,917.70 = 165,980,344.30/x
  3. Step 3: Cross multiply
    201,852,611.80x = 302,778,917.70 × 165,980,344.30
  4. Step 4: Simplify right side
    201,852,611.80x = 50,255,349,006,627,368
  5. Step 5: Solve for x
    x = 50,255,349,006,627,368/201,852,611.80
  6. Step 6: Final answer
    x = 248,970,516.45

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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.