Home / 648,217,215.67-894,539,801.37-354,861,783.67

Finding the Fourth Proportional to 648,217,215.67, 894,539,801.37 and 354,861,783.67

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Solution

The fourth proportional to 648,217,215.67, 894,539,801.37 and 354,861,783.67 is: 489,709,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,217,215.67 : 894,539,801.37 = 354,861,783.67 : x
  2. Step 2: Convert to fraction form
    648,217,215.67/894,539,801.37 = 354,861,783.67/x
  3. Step 3: Cross multiply
    648,217,215.67x = 894,539,801.37 × 354,861,783.67
  4. Step 4: Simplify right side
    648,217,215.67x = 317,437,989,477,965,696
  5. Step 5: Solve for x
    x = 317,437,989,477,965,696/648,217,215.67
  6. Step 6: Final answer
    x = 489,709,285.41

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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.