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Finding the Fourth Proportional to 201,393,716.40, 301,807,139.40 and 149,170,780.80

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Solution

The fourth proportional to 201,393,716.40, 301,807,139.40 and 149,170,780.80 is: 223,546,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,393,716.40 : 301,807,139.40 = 149,170,780.80 : x
  2. Step 2: Convert to fraction form
    201,393,716.40/301,807,139.40 = 149,170,780.80/x
  3. Step 3: Cross multiply
    201,393,716.40x = 301,807,139.40 × 149,170,780.80
  4. Step 4: Simplify right side
    201,393,716.40x = 45,020,806,635,312,440
  5. Step 5: Solve for x
    x = 45,020,806,635,312,440/201,393,716.40
  6. Step 6: Final answer
    x = 223,546,232.92

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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.