Home / 149,964,968.57-206,868,345.27-87,234,004.63

Finding the Fourth Proportional to 149,964,968.57, 206,868,345.27 and 87,234,004.63

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Solution

The fourth proportional to 149,964,968.57, 206,868,345.27 and 87,234,004.63 is: 120,334,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,964,968.57 : 206,868,345.27 = 87,234,004.63 : x
  2. Step 2: Convert to fraction form
    149,964,968.57/206,868,345.27 = 87,234,004.63/x
  3. Step 3: Cross multiply
    149,964,968.57x = 206,868,345.27 × 87,234,004.63
  4. Step 4: Simplify right side
    149,964,968.57x = 18,045,954,188,049,276
  5. Step 5: Solve for x
    x = 18,045,954,188,049,276/149,964,968.57
  6. Step 6: Final answer
    x = 120,334,464.51

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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.