Home / 77,949,697.80-116,916,148.62-20,447,733

Finding the Fourth Proportional to 77,949,697.80, 116,916,148.62 and 20,447,733

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Solution

The fourth proportional to 77,949,697.80, 116,916,148.62 and 20,447,733 is: 30,669,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,949,697.80 : 116,916,148.62 = 20,447,733 : x
  2. Step 2: Convert to fraction form
    77,949,697.80/116,916,148.62 = 20,447,733/x
  3. Step 3: Cross multiply
    77,949,697.80x = 116,916,148.62 × 20,447,733
  4. Step 4: Simplify right side
    77,949,697.80x = 2,390,670,190,370,078.50
  5. Step 5: Solve for x
    x = 2,390,670,190,370,078.50/77,949,697.80
  6. Step 6: Final answer
    x = 30,669,396.52

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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.