Home / 8,622,121.18-12,918,541.34-5,203,223.72

Finding the Fourth Proportional to 8,622,121.18, 12,918,541.34 and 5,203,223.72

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Solution

The fourth proportional to 8,622,121.18, 12,918,541.34 and 5,203,223.72 is: 7,796,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622,121.18 : 12,918,541.34 = 5,203,223.72 : x
  2. Step 2: Convert to fraction form
    8,622,121.18/12,918,541.34 = 5,203,223.72/x
  3. Step 3: Cross multiply
    8,622,121.18x = 12,918,541.34 × 5,203,223.72
  4. Step 4: Simplify right side
    8,622,121.18x = 67,218,060,692,148.36
  5. Step 5: Solve for x
    x = 67,218,060,692,148.36/8,622,121.18
  6. Step 6: Final answer
    x = 7,796,000.46

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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.