Home / 20,731,187.60-31,096,781.40-10,653,491.60

Finding the Fourth Proportional to 20,731,187.60, 31,096,781.40 and 10,653,491.60

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Solution

The fourth proportional to 20,731,187.60, 31,096,781.40 and 10,653,491.60 is: 15,980,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,187.60 : 31,096,781.40 = 10,653,491.60 : x
  2. Step 2: Convert to fraction form
    20,731,187.60/31,096,781.40 = 10,653,491.60/x
  3. Step 3: Cross multiply
    20,731,187.60x = 31,096,781.40 × 10,653,491.60
  4. Step 4: Simplify right side
    20,731,187.60x = 331,289,299,431,936.19
  5. Step 5: Solve for x
    x = 331,289,299,431,936.19/20,731,187.60
  6. Step 6: Final answer
    x = 15,980,237.40

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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.