Home / 351,968,599.63-485,495,732.57-208,813,010.95

Finding the Fourth Proportional to 351,968,599.63, 485,495,732.57 and 208,813,010.95

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Solution

The fourth proportional to 351,968,599.63, 485,495,732.57 and 208,813,010.95 is: 288,030,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,968,599.63 : 485,495,732.57 = 208,813,010.95 : x
  2. Step 2: Convert to fraction form
    351,968,599.63/485,495,732.57 = 208,813,010.95/x
  3. Step 3: Cross multiply
    351,968,599.63x = 485,495,732.57 × 208,813,010.95
  4. Step 4: Simplify right side
    351,968,599.63x = 101,377,825,720,273,616
  5. Step 5: Solve for x
    x = 101,377,825,720,273,616/351,968,599.63
  6. Step 6: Final answer
    x = 288,030,880.67

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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.