Finding the Fourth Proportional to 73,821,416.20, 110,698,946.70 and 28,368,104.20
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Solution
The fourth proportional to 73,821,416.20, 110,698,946.70 and 28,368,104.20 is: 42,539,406.81
Step by Step Solution
- Step 1: Write the proportion equation
73,821,416.20 : 110,698,946.70 = 28,368,104.20 : x - Step 2: Convert to fraction form
73,821,416.20/110,698,946.70 = 28,368,104.20/x - Step 3: Cross multiply
73,821,416.20x = 110,698,946.70 × 28,368,104.20 - Step 4: Simplify right side
73,821,416.20x = 3,140,319,254,815,846 - Step 5: Solve for x
x = 3,140,319,254,815,846/73,821,416.20 - Step 6: Final answer
x = 42,539,406.81
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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.