Home / 513,829,471.11-709,085,334.12-278,880,104.85

Finding the Fourth Proportional to 513,829,471.11, 709,085,334.12 and 278,880,104.85

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Solution

The fourth proportional to 513,829,471.11, 709,085,334.12 and 278,880,104.85 is: 384,854,905.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,829,471.11 : 709,085,334.12 = 278,880,104.85 : x
  2. Step 2: Convert to fraction form
    513,829,471.11/709,085,334.12 = 278,880,104.85/x
  3. Step 3: Cross multiply
    513,829,471.11x = 709,085,334.12 × 278,880,104.85
  4. Step 4: Simplify right side
    513,829,471.11x = 197,749,792,326,982,912
  5. Step 5: Solve for x
    x = 197,749,792,326,982,912/513,829,471.11
  6. Step 6: Final answer
    x = 384,854,905.07

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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.