Home / 102,458,656.90-141,392,523.78-55,415,782.90

Finding the Fourth Proportional to 102,458,656.90, 141,392,523.78 and 55,415,782.90

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Solution

The fourth proportional to 102,458,656.90, 141,392,523.78 and 55,415,782.90 is: 76,473,551.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,458,656.90 : 141,392,523.78 = 55,415,782.90 : x
  2. Step 2: Convert to fraction form
    102,458,656.90/141,392,523.78 = 55,415,782.90/x
  3. Step 3: Cross multiply
    102,458,656.90x = 141,392,523.78 × 55,415,782.90
  4. Step 4: Simplify right side
    102,458,656.90x = 7,835,377,401,475,567
  5. Step 5: Solve for x
    x = 7,835,377,401,475,567/102,458,656.90
  6. Step 6: Final answer
    x = 76,473,551.76

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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.