Home / 18,456,430.20-27,684,645.30-7,670,146.20

Finding the Fourth Proportional to 18,456,430.20, 27,684,645.30 and 7,670,146.20

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Solution

The fourth proportional to 18,456,430.20, 27,684,645.30 and 7,670,146.20 is: 11,505,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456,430.20 : 27,684,645.30 = 7,670,146.20 : x
  2. Step 2: Convert to fraction form
    18,456,430.20/27,684,645.30 = 7,670,146.20/x
  3. Step 3: Cross multiply
    18,456,430.20x = 27,684,645.30 × 7,670,146.20
  4. Step 4: Simplify right side
    18,456,430.20x = 212,345,276,946,142.88
  5. Step 5: Solve for x
    x = 212,345,276,946,142.88/18,456,430.20
  6. Step 6: Final answer
    x = 11,505,219.30

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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.