Home / 698,893,171.47-964,492,763.81-385,647,557.67

Finding the Fourth Proportional to 698,893,171.47, 964,492,763.81 and 385,647,557.67

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Solution

The fourth proportional to 698,893,171.47, 964,492,763.81 and 385,647,557.67 is: 532,204,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,893,171.47 : 964,492,763.81 = 385,647,557.67 : x
  2. Step 2: Convert to fraction form
    698,893,171.47/964,492,763.81 = 385,647,557.67/x
  3. Step 3: Cross multiply
    698,893,171.47x = 964,492,763.81 × 385,647,557.67
  4. Step 4: Simplify right side
    698,893,171.47x = 371,954,278,751,786,432
  5. Step 5: Solve for x
    x = 371,954,278,751,786,432/698,893,171.47
  6. Step 6: Final answer
    x = 532,204,768.82

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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.