Home / 12,939,420.60-19,405,808.28-3,839,365.71

Finding the Fourth Proportional to 12,939,420.60, 19,405,808.28 and 3,839,365.71

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Solution

The fourth proportional to 12,939,420.60, 19,405,808.28 and 3,839,365.71 is: 5,758,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,420.60 : 19,405,808.28 = 3,839,365.71 : x
  2. Step 2: Convert to fraction form
    12,939,420.60/19,405,808.28 = 3,839,365.71/x
  3. Step 3: Cross multiply
    12,939,420.60x = 19,405,808.28 × 3,839,365.71
  4. Step 4: Simplify right side
    12,939,420.60x = 74,505,994,885,066.08
  5. Step 5: Solve for x
    x = 74,505,994,885,066.08/12,939,420.60
  6. Step 6: Final answer
    x = 5,758,062.68

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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.