Home / 80,931,388.61-111,678,564.70-45,647,249.33

Finding the Fourth Proportional to 80,931,388.61, 111,678,564.70 and 45,647,249.33

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Solution

The fourth proportional to 80,931,388.61, 111,678,564.70 and 45,647,249.33 is: 62,989,396.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931,388.61 : 111,678,564.70 = 45,647,249.33 : x
  2. Step 2: Convert to fraction form
    80,931,388.61/111,678,564.70 = 45,647,249.33/x
  3. Step 3: Cross multiply
    80,931,388.61x = 111,678,564.70 × 45,647,249.33
  4. Step 4: Simplify right side
    80,931,388.61x = 5,097,819,287,677,437
  5. Step 5: Solve for x
    x = 5,097,819,287,677,437/80,931,388.61
  6. Step 6: Final answer
    x = 62,989,396.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.