Home / 48,271,471.79-72,405,605.10-20,977,790.72

Finding the Fourth Proportional to 48,271,471.79, 72,405,605.10 and 20,977,790.72

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Solution

The fourth proportional to 48,271,471.79, 72,405,605.10 and 20,977,790.72 is: 31,465,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,271,471.79 : 72,405,605.10 = 20,977,790.72 : x
  2. Step 2: Convert to fraction form
    48,271,471.79/72,405,605.10 = 20,977,790.72/x
  3. Step 3: Cross multiply
    48,271,471.79x = 72,405,605.10 × 20,977,790.72
  4. Step 4: Simplify right side
    48,271,471.79x = 1,518,909,630,380,736.50
  5. Step 5: Solve for x
    x = 1,518,909,630,380,736.50/48,271,471.79
  6. Step 6: Final answer
    x = 31,465,989.62

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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.