Home / 7,142,495.66-9,856,672.16-3,879,364.84

Finding the Fourth Proportional to 7,142,495.66, 9,856,672.16 and 3,879,364.84

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Solution

The fourth proportional to 7,142,495.66, 9,856,672.16 and 3,879,364.84 is: 5,353,538.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,495.66 : 9,856,672.16 = 3,879,364.84 : x
  2. Step 2: Convert to fraction form
    7,142,495.66/9,856,672.16 = 3,879,364.84/x
  3. Step 3: Cross multiply
    7,142,495.66x = 9,856,672.16 × 3,879,364.84
  4. Step 4: Simplify right side
    7,142,495.66x = 38,237,627,450,137.55
  5. Step 5: Solve for x
    x = 38,237,627,450,137.55/7,142,495.66
  6. Step 6: Final answer
    x = 5,353,538.77

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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.