Home / 77,049,172.32-106,325,034.66-42,241,100.64

Finding the Fourth Proportional to 77,049,172.32, 106,325,034.66 and 42,241,100.64

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Solution

The fourth proportional to 77,049,172.32, 106,325,034.66 and 42,241,100.64 is: 58,291,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,049,172.32 : 106,325,034.66 = 42,241,100.64 : x
  2. Step 2: Convert to fraction form
    77,049,172.32/106,325,034.66 = 42,241,100.64/x
  3. Step 3: Cross multiply
    77,049,172.32x = 106,325,034.66 × 42,241,100.64
  4. Step 4: Simplify right side
    77,049,172.32x = 4,491,286,489,624,548
  5. Step 5: Solve for x
    x = 4,491,286,489,624,548/77,049,172.32
  6. Step 6: Final answer
    x = 58,291,171.14

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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.