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Finding the Fourth Proportional to 68,624,847.80, 102,937,271.70 and 23,185,986.20

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Solution

The fourth proportional to 68,624,847.80, 102,937,271.70 and 23,185,986.20 is: 34,778,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,624,847.80 : 102,937,271.70 = 23,185,986.20 : x
  2. Step 2: Convert to fraction form
    68,624,847.80/102,937,271.70 = 23,185,986.20/x
  3. Step 3: Cross multiply
    68,624,847.80x = 102,937,271.70 × 23,185,986.20
  4. Step 4: Simplify right side
    68,624,847.80x = 2,386,702,161,101,850.50
  5. Step 5: Solve for x
    x = 2,386,702,161,101,850.50/68,624,847.80
  6. Step 6: Final answer
    x = 34,778,979.30

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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.