Home / 7,020,679.77-9,688,489.92-3,923,211.02

Finding the Fourth Proportional to 7,020,679.77, 9,688,489.92 and 3,923,211.02

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Solution

The fourth proportional to 7,020,679.77, 9,688,489.92 and 3,923,211.02 is: 5,414,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020,679.77 : 9,688,489.92 = 3,923,211.02 : x
  2. Step 2: Convert to fraction form
    7,020,679.77/9,688,489.92 = 3,923,211.02/x
  3. Step 3: Cross multiply
    7,020,679.77x = 9,688,489.92 × 3,923,211.02
  4. Step 4: Simplify right side
    7,020,679.77x = 38,009,990,372,860.47
  5. Step 5: Solve for x
    x = 38,009,990,372,860.47/7,020,679.77
  6. Step 6: Final answer
    x = 5,414,004.29

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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.