Home / 304,486,128.11-420,191,271.56-165,256,891.67

Finding the Fourth Proportional to 304,486,128.11, 420,191,271.56 and 165,256,891.67

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Solution

The fourth proportional to 304,486,128.11, 420,191,271.56 and 165,256,891.67 is: 228,054,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,486,128.11 : 420,191,271.56 = 165,256,891.67 : x
  2. Step 2: Convert to fraction form
    304,486,128.11/420,191,271.56 = 165,256,891.67/x
  3. Step 3: Cross multiply
    304,486,128.11x = 420,191,271.56 × 165,256,891.67
  4. Step 4: Simplify right side
    304,486,128.11x = 69,439,503,444,870,464
  5. Step 5: Solve for x
    x = 69,439,503,444,870,464/304,486,128.11
  6. Step 6: Final answer
    x = 228,054,735.62

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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.