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Finding the Fourth Proportional to 70,000,980.60, 104,969,978.10 and 26,855,844.60

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Solution

The fourth proportional to 70,000,980.60, 104,969,978.10 and 26,855,844.60 is: 40,271,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000,980.60 : 104,969,978.10 = 26,855,844.60 : x
  2. Step 2: Convert to fraction form
    70,000,980.60/104,969,978.10 = 26,855,844.60/x
  3. Step 3: Cross multiply
    70,000,980.60x = 104,969,978.10 × 26,855,844.60
  4. Step 4: Simplify right side
    70,000,980.60x = 2,819,057,419,519,003.50
  5. Step 5: Solve for x
    x = 2,819,057,419,519,003.50/70,000,980.60
  6. Step 6: Final answer
    x = 40,271,684.70

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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.