Home / 70,340,125.38-97,069,942.86-38,978,698.26

Finding the Fourth Proportional to 70,340,125.38, 97,069,942.86 and 38,978,698.26

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Solution

The fourth proportional to 70,340,125.38, 97,069,942.86 and 38,978,698.26 is: 53,790,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,340,125.38 : 97,069,942.86 = 38,978,698.26 : x
  2. Step 2: Convert to fraction form
    70,340,125.38/97,069,942.86 = 38,978,698.26/x
  3. Step 3: Cross multiply
    70,340,125.38x = 97,069,942.86 × 38,978,698.26
  4. Step 4: Simplify right side
    70,340,125.38x = 3,783,660,012,855,381
  5. Step 5: Solve for x
    x = 3,783,660,012,855,381/70,340,125.38
  6. Step 6: Final answer
    x = 53,790,919.37

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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.