Home / 107,313,977.20-161,024,109.90-61,291,186.60

Finding the Fourth Proportional to 107,313,977.20, 161,024,109.90 and 61,291,186.60

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Solution

The fourth proportional to 107,313,977.20, 161,024,109.90 and 61,291,186.60 is: 91,967,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,313,977.20 : 161,024,109.90 = 61,291,186.60 : x
  2. Step 2: Convert to fraction form
    107,313,977.20/161,024,109.90 = 61,291,186.60/x
  3. Step 3: Cross multiply
    107,313,977.20x = 161,024,109.90 × 61,291,186.60
  4. Step 4: Simplify right side
    107,313,977.20x = 9,869,358,766,979,808
  5. Step 5: Solve for x
    x = 9,869,358,766,979,808/107,313,977.20
  6. Step 6: Final answer
    x = 91,967,132.56

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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.