Home / 128,526,554.80-177,322,307.04-82,143,958.96

Finding the Fourth Proportional to 128,526,554.80, 177,322,307.04 and 82,143,958.96

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Solution

The fourth proportional to 128,526,554.80, 177,322,307.04 and 82,143,958.96 is: 113,330,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,526,554.80 : 177,322,307.04 = 82,143,958.96 : x
  2. Step 2: Convert to fraction form
    128,526,554.80/177,322,307.04 = 82,143,958.96/x
  3. Step 3: Cross multiply
    128,526,554.80x = 177,322,307.04 × 82,143,958.96
  4. Step 4: Simplify right side
    128,526,554.80x = 14,565,956,312,186,278
  5. Step 5: Solve for x
    x = 14,565,956,312,186,278/128,526,554.80
  6. Step 6: Final answer
    x = 113,330,325.67

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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.