Home / 12,011,362.40-18,008,485.14-5,618,129.60

Finding the Fourth Proportional to 12,011,362.40, 18,008,485.14 and 5,618,129.60

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Solution

The fourth proportional to 12,011,362.40, 18,008,485.14 and 5,618,129.60 is: 8,423,191.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,362.40 : 18,008,485.14 = 5,618,129.60 : x
  2. Step 2: Convert to fraction form
    12,011,362.40/18,008,485.14 = 5,618,129.60/x
  3. Step 3: Cross multiply
    12,011,362.40x = 18,008,485.14 × 5,618,129.60
  4. Step 4: Simplify right side
    12,011,362.40x = 101,174,003,416,194.14
  5. Step 5: Solve for x
    x = 101,174,003,416,194.14/12,011,362.40
  6. Step 6: Final answer
    x = 8,423,191.31

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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.