Home / 19,723,752-29,592,272.40-12,428,741.28

Finding the Fourth Proportional to 19,723,752, 29,592,272.40 and 12,428,741.28

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Solution

The fourth proportional to 19,723,752, 29,592,272.40 and 12,428,741.28 is: 18,647,298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723,752 : 29,592,272.40 = 12,428,741.28 : x
  2. Step 2: Convert to fraction form
    19,723,752/29,592,272.40 = 12,428,741.28/x
  3. Step 3: Cross multiply
    19,723,752x = 29,592,272.40 × 12,428,741.28
  4. Step 4: Simplify right side
    19,723,752x = 367,794,697,546,884.62
  5. Step 5: Solve for x
    x = 367,794,697,546,884.62/19,723,752
  6. Step 6: Final answer
    x = 18,647,298.83

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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.