Home / 648,217,212.67-894,539,797.23-354,861,780.67

Finding the Fourth Proportional to 648,217,212.67, 894,539,797.23 and 354,861,780.67

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Solution

The fourth proportional to 648,217,212.67, 894,539,797.23 and 354,861,780.67 is: 489,709,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,217,212.67 : 894,539,797.23 = 354,861,780.67 : x
  2. Step 2: Convert to fraction form
    648,217,212.67/894,539,797.23 = 354,861,780.67/x
  3. Step 3: Cross multiply
    648,217,212.67x = 894,539,797.23 × 354,861,780.67
  4. Step 4: Simplify right side
    648,217,212.67x = 317,437,985,325,218,560
  5. Step 5: Solve for x
    x = 317,437,985,325,218,560/648,217,212.67
  6. Step 6: Final answer
    x = 489,709,281.27

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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.