Home / 216,930,867.88-299,291,762.82-122,832,157

Finding the Fourth Proportional to 216,930,867.88, 299,291,762.82 and 122,832,157

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Solution

The fourth proportional to 216,930,867.88, 299,291,762.82 and 122,832,157 is: 169,467,135.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,930,867.88 : 299,291,762.82 = 122,832,157 : x
  2. Step 2: Convert to fraction form
    216,930,867.88/299,291,762.82 = 122,832,157/x
  3. Step 3: Cross multiply
    216,930,867.88x = 299,291,762.82 × 122,832,157
  4. Step 4: Simplify right side
    216,930,867.88x = 36,762,652,799,513,000
  5. Step 5: Solve for x
    x = 36,762,652,799,513,000/216,930,867.88
  6. Step 6: Final answer
    x = 169,467,135.58

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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.