Home / 21,385,310.80-32,007,107.40-19,684,699.60

Finding the Fourth Proportional to 21,385,310.80, 32,007,107.40 and 19,684,699.60

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Solution

The fourth proportional to 21,385,310.80, 32,007,107.40 and 19,684,699.60 is: 29,461,825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,310.80 : 32,007,107.40 = 19,684,699.60 : x
  2. Step 2: Convert to fraction form
    21,385,310.80/32,007,107.40 = 19,684,699.60/x
  3. Step 3: Cross multiply
    21,385,310.80x = 32,007,107.40 × 19,684,699.60
  4. Step 4: Simplify right side
    21,385,310.80x = 630,050,294,233,937
  5. Step 5: Solve for x
    x = 630,050,294,233,937/21,385,310.80
  6. Step 6: Final answer
    x = 29,461,825.46

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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.