Home / 209,590,559.06-289,236,946.47-115,508,093.56

Finding the Fourth Proportional to 209,590,559.06, 289,236,946.47 and 115,508,093.56

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Solution

The fourth proportional to 209,590,559.06, 289,236,946.47 and 115,508,093.56 is: 159,402,257.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,590,559.06 : 289,236,946.47 = 115,508,093.56 : x
  2. Step 2: Convert to fraction form
    209,590,559.06/289,236,946.47 = 115,508,093.56/x
  3. Step 3: Cross multiply
    209,590,559.06x = 289,236,946.47 × 115,508,093.56
  4. Step 4: Simplify right side
    209,590,559.06x = 33,409,208,274,185,076
  5. Step 5: Solve for x
    x = 33,409,208,274,185,076/209,590,559.06
  6. Step 6: Final answer
    x = 159,402,257.55

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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.