Home / 210,030,081.51-289,833,914.68-115,942,207.62

Finding the Fourth Proportional to 210,030,081.51, 289,833,914.68 and 115,942,207.62

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Solution

The fourth proportional to 210,030,081.51, 289,833,914.68 and 115,942,207.62 is: 159,996,052.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,030,081.51 : 289,833,914.68 = 115,942,207.62 : x
  2. Step 2: Convert to fraction form
    210,030,081.51/289,833,914.68 = 115,942,207.62/x
  3. Step 3: Cross multiply
    210,030,081.51x = 289,833,914.68 × 115,942,207.62
  4. Step 4: Simplify right side
    210,030,081.51x = 33,603,983,911,145,928
  5. Step 5: Solve for x
    x = 33,603,983,911,145,928/210,030,081.51
  6. Step 6: Final answer
    x = 159,996,052.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.