Home / 290,147,212.70-434,937,383.85-259,536,211.10

Finding the Fourth Proportional to 290,147,212.70, 434,937,383.85 and 259,536,211.10

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Solution

The fourth proportional to 290,147,212.70, 434,937,383.85 and 259,536,211.10 is: 389,050,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,147,212.70 : 434,937,383.85 = 259,536,211.10 : x
  2. Step 2: Convert to fraction form
    290,147,212.70/434,937,383.85 = 259,536,211.10/x
  3. Step 3: Cross multiply
    290,147,212.70x = 434,937,383.85 × 259,536,211.10
  4. Step 4: Simplify right side
    290,147,212.70x = 112,882,000,670,175,328
  5. Step 5: Solve for x
    x = 112,882,000,670,175,328/290,147,212.70
  6. Step 6: Final answer
    x = 389,050,784.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.