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Finding the Fourth Proportional to 34,952,428.80, 52,428,643.20 and 21,347,539.20

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Solution

The fourth proportional to 34,952,428.80, 52,428,643.20 and 21,347,539.20 is: 32,021,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,952,428.80 : 52,428,643.20 = 21,347,539.20 : x
  2. Step 2: Convert to fraction form
    34,952,428.80/52,428,643.20 = 21,347,539.20/x
  3. Step 3: Cross multiply
    34,952,428.80x = 52,428,643.20 × 21,347,539.20
  4. Step 4: Simplify right side
    34,952,428.80x = 1,119,222,515,914,813.50
  5. Step 5: Solve for x
    x = 1,119,222,515,914,813.50/34,952,428.80
  6. Step 6: Final answer
    x = 32,021,308.80

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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.