Home / 543,215,203.07-749,655,067.45-305,102,284.36

Finding the Fourth Proportional to 543,215,203.07, 749,655,067.45 and 305,102,284.36

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Solution

The fourth proportional to 543,215,203.07, 749,655,067.45 and 305,102,284.36 is: 421,051,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,215,203.07 : 749,655,067.45 = 305,102,284.36 : x
  2. Step 2: Convert to fraction form
    543,215,203.07/749,655,067.45 = 305,102,284.36/x
  3. Step 3: Cross multiply
    543,215,203.07x = 749,655,067.45 × 305,102,284.36
  4. Step 4: Simplify right side
    543,215,203.07x = 228,721,473,555,771,136
  5. Step 5: Solve for x
    x = 228,721,473,555,771,136/543,215,203.07
  6. Step 6: Final answer
    x = 421,051,311.27

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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.