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Finding the Fourth Proportional to 6,388,844.40, 9,578,539.80 and 3,019,114.80

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Solution

The fourth proportional to 6,388,844.40, 9,578,539.80 and 3,019,114.80 is: 4,526,438.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388,844.40 : 9,578,539.80 = 3,019,114.80 : x
  2. Step 2: Convert to fraction form
    6,388,844.40/9,578,539.80 = 3,019,114.80/x
  3. Step 3: Cross multiply
    6,388,844.40x = 9,578,539.80 × 3,019,114.80
  4. Step 4: Simplify right side
    6,388,844.40x = 28,918,711,272,569.04
  5. Step 5: Solve for x
    x = 28,918,711,272,569.04/6,388,844.40
  6. Step 6: Final answer
    x = 4,526,438.50

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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.