Home / 72,692,139.20-109,091,352.90-48,423,000.20

Finding the Fourth Proportional to 72,692,139.20, 109,091,352.90 and 48,423,000.20

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Solution

The fourth proportional to 72,692,139.20, 109,091,352.90 and 48,423,000.20 is: 72,669,901.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,692,139.20 : 109,091,352.90 = 48,423,000.20 : x
  2. Step 2: Convert to fraction form
    72,692,139.20/109,091,352.90 = 48,423,000.20/x
  3. Step 3: Cross multiply
    72,692,139.20x = 109,091,352.90 × 48,423,000.20
  4. Step 4: Simplify right side
    72,692,139.20x = 5,282,530,603,294,971
  5. Step 5: Solve for x
    x = 5,282,530,603,294,971/72,692,139.20
  6. Step 6: Final answer
    x = 72,669,901.61

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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.