Home / 7,212,980.68-9,953,913.36-4,157,391.76

Finding the Fourth Proportional to 7,212,980.68, 9,953,913.36 and 4,157,391.76

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Solution

The fourth proportional to 7,212,980.68, 9,953,913.36 and 4,157,391.76 is: 5,737,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,980.68 : 9,953,913.36 = 4,157,391.76 : x
  2. Step 2: Convert to fraction form
    7,212,980.68/9,953,913.36 = 4,157,391.76/x
  3. Step 3: Cross multiply
    7,212,980.68x = 9,953,913.36 × 4,157,391.76
  4. Step 4: Simplify right side
    7,212,980.68x = 41,382,317,382,617.91
  5. Step 5: Solve for x
    x = 41,382,317,382,617.91/7,212,980.68
  6. Step 6: Final answer
    x = 5,737,200.64

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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.