Home / 216,930,866.88-299,291,761.44-122,832,156

Finding the Fourth Proportional to 216,930,866.88, 299,291,761.44 and 122,832,156

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Solution

The fourth proportional to 216,930,866.88, 299,291,761.44 and 122,832,156 is: 169,467,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,930,866.88 : 299,291,761.44 = 122,832,156 : x
  2. Step 2: Convert to fraction form
    216,930,866.88/299,291,761.44 = 122,832,156/x
  3. Step 3: Cross multiply
    216,930,866.88x = 299,291,761.44 × 122,832,156
  4. Step 4: Simplify right side
    216,930,866.88x = 36,762,652,330,712,864
  5. Step 5: Solve for x
    x = 36,762,652,330,712,864/216,930,866.88
  6. Step 6: Final answer
    x = 169,467,134.20

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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.