Home / 209,590,560.56-289,236,948.54-115,508,095.07

Finding the Fourth Proportional to 209,590,560.56, 289,236,948.54 and 115,508,095.07

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Solution

The fourth proportional to 209,590,560.56, 289,236,948.54 and 115,508,095.07 is: 159,402,259.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,590,560.56 : 289,236,948.54 = 115,508,095.07 : x
  2. Step 2: Convert to fraction form
    209,590,560.56/289,236,948.54 = 115,508,095.07/x
  3. Step 3: Cross multiply
    209,590,560.56x = 289,236,948.54 × 115,508,095.07
  4. Step 4: Simplify right side
    209,590,560.56x = 33,409,208,948,268,836
  5. Step 5: Solve for x
    x = 33,409,208,948,268,836/209,590,560.56
  6. Step 6: Final answer
    x = 159,402,259.62

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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.