Home / 20,464,842.96-28,241,712.20-11,297,490.64

Finding the Fourth Proportional to 20,464,842.96, 28,241,712.20 and 11,297,490.64

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Solution

The fourth proportional to 20,464,842.96, 28,241,712.20 and 11,297,490.64 is: 15,590,663.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464,842.96 : 28,241,712.20 = 11,297,490.64 : x
  2. Step 2: Convert to fraction form
    20,464,842.96/28,241,712.20 = 11,297,490.64/x
  3. Step 3: Cross multiply
    20,464,842.96x = 28,241,712.20 × 11,297,490.64
  4. Step 4: Simplify right side
    20,464,842.96x = 319,060,479,237,073.81
  5. Step 5: Solve for x
    x = 319,060,479,237,073.81/20,464,842.96
  6. Step 6: Final answer
    x = 15,590,663.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.