Home / 12,559,857.60-18,842,464.80-7,171,089.60

Finding the Fourth Proportional to 12,559,857.60, 18,842,464.80 and 7,171,089.60

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Solution

The fourth proportional to 12,559,857.60, 18,842,464.80 and 7,171,089.60 is: 10,758,163.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559,857.60 : 18,842,464.80 = 7,171,089.60 : x
  2. Step 2: Convert to fraction form
    12,559,857.60/18,842,464.80 = 7,171,089.60/x
  3. Step 3: Cross multiply
    12,559,857.60x = 18,842,464.80 × 7,171,089.60
  4. Step 4: Simplify right side
    12,559,857.60x = 135,121,003,365,646.08
  5. Step 5: Solve for x
    x = 135,121,003,365,646.08/12,559,857.60
  6. Step 6: Final answer
    x = 10,758,163.64

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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.