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Finding the Fourth Proportional to 200,265,655.80, 300,451,627.80 and 70,859,772.30

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Solution

The fourth proportional to 200,265,655.80, 300,451,627.80 and 70,859,772.30 is: 106,308,462.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,265,655.80 : 300,451,627.80 = 70,859,772.30 : x
  2. Step 2: Convert to fraction form
    200,265,655.80/300,451,627.80 = 70,859,772.30/x
  3. Step 3: Cross multiply
    200,265,655.80x = 300,451,627.80 × 70,859,772.30
  4. Step 4: Simplify right side
    200,265,655.80x = 21,289,933,933,072,348
  5. Step 5: Solve for x
    x = 21,289,933,933,072,348/200,265,655.80
  6. Step 6: Final answer
    x = 106,308,462.37

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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.