Home / 208,394,319.70-287,636,421.90-141,526,419.67

Finding the Fourth Proportional to 208,394,319.70, 287,636,421.90 and 141,526,419.67

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Solution

The fourth proportional to 208,394,319.70, 287,636,421.90 and 141,526,419.67 is: 195,341,950.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,394,319.70 : 287,636,421.90 = 141,526,419.67 : x
  2. Step 2: Convert to fraction form
    208,394,319.70/287,636,421.90 = 141,526,419.67/x
  3. Step 3: Cross multiply
    208,394,319.70x = 287,636,421.90 × 141,526,419.67
  4. Step 4: Simplify right side
    208,394,319.70x = 40,708,152,958,196,568
  5. Step 5: Solve for x
    x = 40,708,152,958,196,568/208,394,319.70
  6. Step 6: Final answer
    x = 195,341,950.86

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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.