Home / 209,590,562.31-289,236,950.96-115,508,096.81

Finding the Fourth Proportional to 209,590,562.31, 289,236,950.96 and 115,508,096.81

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Solution

The fourth proportional to 209,590,562.31, 289,236,950.96 and 115,508,096.81 is: 159,402,262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,590,562.31 : 289,236,950.96 = 115,508,096.81 : x
  2. Step 2: Convert to fraction form
    209,590,562.31/289,236,950.96 = 115,508,096.81/x
  3. Step 3: Cross multiply
    209,590,562.31x = 289,236,950.96 × 115,508,096.81
  4. Step 4: Simplify right side
    209,590,562.31x = 33,409,209,732,516,900
  5. Step 5: Solve for x
    x = 33,409,209,732,516,900/209,590,562.31
  6. Step 6: Final answer
    x = 159,402,262.03

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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.