Home / 100,048,310.57-138,070,983.58-55,394,282.30

Finding the Fourth Proportional to 100,048,310.57, 138,070,983.58 and 55,394,282.30

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Solution

The fourth proportional to 100,048,310.57, 138,070,983.58 and 55,394,282.30 is: 76,446,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,048,310.57 : 138,070,983.58 = 55,394,282.30 : x
  2. Step 2: Convert to fraction form
    100,048,310.57/138,070,983.58 = 55,394,282.30/x
  3. Step 3: Cross multiply
    100,048,310.57x = 138,070,983.58 × 55,394,282.30
  4. Step 4: Simplify right side
    100,048,310.57x = 7,648,343,041,040,343
  5. Step 5: Solve for x
    x = 7,648,343,041,040,343/100,048,310.57
  6. Step 6: Final answer
    x = 76,446,498.67

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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.