Home / 68,143,312.80-102,214,969.20-40,933,533.60

Finding the Fourth Proportional to 68,143,312.80, 102,214,969.20 and 40,933,533.60

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Solution

The fourth proportional to 68,143,312.80, 102,214,969.20 and 40,933,533.60 is: 61,400,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,143,312.80 : 102,214,969.20 = 40,933,533.60 : x
  2. Step 2: Convert to fraction form
    68,143,312.80/102,214,969.20 = 40,933,533.60/x
  3. Step 3: Cross multiply
    68,143,312.80x = 102,214,969.20 × 40,933,533.60
  4. Step 4: Simplify right side
    68,143,312.80x = 4,184,019,876,171,165.50
  5. Step 5: Solve for x
    x = 4,184,019,876,171,165.50/68,143,312.80
  6. Step 6: Final answer
    x = 61,400,300.40

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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.