Home / 7,142,329.38-9,856,485.63-3,879,207.93

Finding the Fourth Proportional to 7,142,329.38, 9,856,485.63 and 3,879,207.93

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Solution

The fourth proportional to 7,142,329.38, 9,856,485.63 and 3,879,207.93 is: 5,353,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,329.38 : 9,856,485.63 = 3,879,207.93 : x
  2. Step 2: Convert to fraction form
    7,142,329.38/9,856,485.63 = 3,879,207.93/x
  3. Step 3: Cross multiply
    7,142,329.38x = 9,856,485.63 × 3,879,207.93
  4. Step 4: Simplify right side
    7,142,329.38x = 38,235,357,217,827.05
  5. Step 5: Solve for x
    x = 38,235,357,217,827.05/7,142,329.38
  6. Step 6: Final answer
    x = 5,353,345.55

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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.