Home / 149,964,970.77-206,868,348.29-87,234,006.82

Finding the Fourth Proportional to 149,964,970.77, 206,868,348.29 and 87,234,006.82

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Solution

The fourth proportional to 149,964,970.77, 206,868,348.29 and 87,234,006.82 is: 120,334,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,964,970.77 : 206,868,348.29 = 87,234,006.82 : x
  2. Step 2: Convert to fraction form
    149,964,970.77/206,868,348.29 = 87,234,006.82/x
  3. Step 3: Cross multiply
    149,964,970.77x = 206,868,348.29 × 87,234,006.82
  4. Step 4: Simplify right side
    149,964,970.77x = 18,045,954,905,135,824
  5. Step 5: Solve for x
    x = 18,045,954,905,135,824/149,964,970.77
  6. Step 6: Final answer
    x = 120,334,467.53

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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.