Home / 13,731,821.60-20,607,063.60-7,666,541.60

Finding the Fourth Proportional to 13,731,821.60, 20,607,063.60 and 7,666,541.60

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Solution

The fourth proportional to 13,731,821.60, 20,607,063.60 and 7,666,541.60 is: 11,505,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731,821.60 : 20,607,063.60 = 7,666,541.60 : x
  2. Step 2: Convert to fraction form
    13,731,821.60/20,607,063.60 = 7,666,541.60/x
  3. Step 3: Cross multiply
    13,731,821.60x = 20,607,063.60 × 7,666,541.60
  4. Step 4: Simplify right side
    13,731,821.60x = 157,984,910,343,245.75
  5. Step 5: Solve for x
    x = 157,984,910,343,245.75/13,731,821.60
  6. Step 6: Final answer
    x = 11,505,022.05

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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.