Home / 28,329,697.80-42,494,546.70-18,126,030.60

Finding the Fourth Proportional to 28,329,697.80, 42,494,546.70 and 18,126,030.60

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Solution

The fourth proportional to 28,329,697.80, 42,494,546.70 and 18,126,030.60 is: 27,189,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,329,697.80 : 42,494,546.70 = 18,126,030.60 : x
  2. Step 2: Convert to fraction form
    28,329,697.80/42,494,546.70 = 18,126,030.60/x
  3. Step 3: Cross multiply
    28,329,697.80x = 42,494,546.70 × 18,126,030.60
  4. Step 4: Simplify right side
    28,329,697.80x = 770,257,453,817,329.12
  5. Step 5: Solve for x
    x = 770,257,453,817,329.12/28,329,697.80
  6. Step 6: Final answer
    x = 27,189,045.90

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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.