Home / 209,590,562.16-289,236,950.75-115,508,096.66

Finding the Fourth Proportional to 209,590,562.16, 289,236,950.75 and 115,508,096.66

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Solution

The fourth proportional to 209,590,562.16, 289,236,950.75 and 115,508,096.66 is: 159,402,261.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,590,562.16 : 289,236,950.75 = 115,508,096.66 : x
  2. Step 2: Convert to fraction form
    209,590,562.16/289,236,950.75 = 115,508,096.66/x
  3. Step 3: Cross multiply
    209,590,562.16x = 289,236,950.75 × 115,508,096.66
  4. Step 4: Simplify right side
    209,590,562.16x = 33,409,209,665,886,520
  5. Step 5: Solve for x
    x = 33,409,209,665,886,520/209,590,562.16
  6. Step 6: Final answer
    x = 159,402,261.83

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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.