Home / 7,159,271.72-9,880,120.28-4,219,212.88

Finding the Fourth Proportional to 7,159,271.72, 9,880,120.28 and 4,219,212.88

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Solution

The fourth proportional to 7,159,271.72, 9,880,120.28 and 4,219,212.88 is: 5,822,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159,271.72 : 9,880,120.28 = 4,219,212.88 : x
  2. Step 2: Convert to fraction form
    7,159,271.72/9,880,120.28 = 4,219,212.88/x
  3. Step 3: Cross multiply
    7,159,271.72x = 9,880,120.28 × 4,219,212.88
  4. Step 4: Simplify right side
    7,159,271.72x = 41,686,330,741,325.20
  5. Step 5: Solve for x
    x = 41,686,330,741,325.20/7,159,271.72
  6. Step 6: Final answer
    x = 5,822,705.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.