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Finding the Fourth Proportional to 30,909,968.40, 46,364,952.60 and 19,563,229.20

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Solution

The fourth proportional to 30,909,968.40, 46,364,952.60 and 19,563,229.20 is: 29,344,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,909,968.40 : 46,364,952.60 = 19,563,229.20 : x
  2. Step 2: Convert to fraction form
    30,909,968.40/46,364,952.60 = 19,563,229.20/x
  3. Step 3: Cross multiply
    30,909,968.40x = 46,364,952.60 × 19,563,229.20
  4. Step 4: Simplify right side
    30,909,968.40x = 907,048,194,560,935.88
  5. Step 5: Solve for x
    x = 907,048,194,560,935.88/30,909,968.40
  6. Step 6: Final answer
    x = 29,344,843.80

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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.