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Finding the Fourth Proportional to 301,806,911.80, 452,710,367.70 and 290,327,786.20

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Solution

The fourth proportional to 301,806,911.80, 452,710,367.70 and 290,327,786.20 is: 435,491,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,806,911.80 : 452,710,367.70 = 290,327,786.20 : x
  2. Step 2: Convert to fraction form
    301,806,911.80/452,710,367.70 = 290,327,786.20/x
  3. Step 3: Cross multiply
    301,806,911.80x = 452,710,367.70 × 290,327,786.20
  4. Step 4: Simplify right side
    301,806,911.80x = 131,434,398,844,128,976
  5. Step 5: Solve for x
    x = 131,434,398,844,128,976/301,806,911.80
  6. Step 6: Final answer
    x = 435,491,679.30

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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.