Home / 68,263,312.80-102,394,969.20-65,617,917.60

Finding the Fourth Proportional to 68,263,312.80, 102,394,969.20 and 65,617,917.60

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Solution

The fourth proportional to 68,263,312.80, 102,394,969.20 and 65,617,917.60 is: 98,426,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,263,312.80 : 102,394,969.20 = 65,617,917.60 : x
  2. Step 2: Convert to fraction form
    68,263,312.80/102,394,969.20 = 65,617,917.60/x
  3. Step 3: Cross multiply
    68,263,312.80x = 102,394,969.20 × 65,617,917.60
  4. Step 4: Simplify right side
    68,263,312.80x = 6,718,944,651,620,138
  5. Step 5: Solve for x
    x = 6,718,944,651,620,138/68,263,312.80
  6. Step 6: Final answer
    x = 98,426,876.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.