Home / 20,881,890.60-31,322,835.90-19,464,714.60

Finding the Fourth Proportional to 20,881,890.60, 31,322,835.90 and 19,464,714.60

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Solution

The fourth proportional to 20,881,890.60, 31,322,835.90 and 19,464,714.60 is: 29,197,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,890.60 : 31,322,835.90 = 19,464,714.60 : x
  2. Step 2: Convert to fraction form
    20,881,890.60/31,322,835.90 = 19,464,714.60/x
  3. Step 3: Cross multiply
    20,881,890.60x = 31,322,835.90 × 19,464,714.60
  4. Step 4: Simplify right side
    20,881,890.60x = 609,690,061,256,134.12
  5. Step 5: Solve for x
    x = 609,690,061,256,134.12/20,881,890.60
  6. Step 6: Final answer
    x = 29,197,071.90

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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.