Home / 7,045,655.68-9,724,745.28-3,991,669.12

Finding the Fourth Proportional to 7,045,655.68, 9,724,745.28 and 3,991,669.12

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Solution

The fourth proportional to 7,045,655.68, 9,724,745.28 and 3,991,669.12 is: 5,509,489.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045,655.68 : 9,724,745.28 = 3,991,669.12 : x
  2. Step 2: Convert to fraction form
    7,045,655.68/9,724,745.28 = 3,991,669.12/x
  3. Step 3: Cross multiply
    7,045,655.68x = 9,724,745.28 × 3,991,669.12
  4. Step 4: Simplify right side
    7,045,655.68x = 38,817,965,434,041.75
  5. Step 5: Solve for x
    x = 38,817,965,434,041.75/7,045,655.68
  6. Step 6: Final answer
    x = 5,509,489.42

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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.