Home / 7,019,039.80-10,536,432.90-5,428,653.40

Finding the Fourth Proportional to 7,019,039.80, 10,536,432.90 and 5,428,653.40

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Solution

The fourth proportional to 7,019,039.80, 10,536,432.90 and 5,428,653.40 is: 8,149,069.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019,039.80 : 10,536,432.90 = 5,428,653.40 : x
  2. Step 2: Convert to fraction form
    7,019,039.80/10,536,432.90 = 5,428,653.40/x
  3. Step 3: Cross multiply
    7,019,039.80x = 10,536,432.90 × 5,428,653.40
  4. Step 4: Simplify right side
    7,019,039.80x = 57,198,642,286,456.87
  5. Step 5: Solve for x
    x = 57,198,642,286,456.87/7,019,039.80
  6. Step 6: Final answer
    x = 8,149,069.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.