Finding the Fourth Proportional to 4,778,999.60, 7,163,833.80 and 4,275,114.80
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Solution
The fourth proportional to 4,778,999.60, 7,163,833.80 and 4,275,114.80 is: 6,408,498.53
Step by Step Solution
- Step 1: Write the proportion equation
4,778,999.60 : 7,163,833.80 = 4,275,114.80 : x - Step 2: Convert to fraction form
4,778,999.60/7,163,833.80 = 4,275,114.80/x - Step 3: Cross multiply
4,778,999.60x = 7,163,833.80 × 4,275,114.80 - Step 4: Simplify right side
4,778,999.60x = 30,626,211,903,120.24 - Step 5: Solve for x
x = 30,626,211,903,120.24/4,778,999.60 - Step 6: Final answer
x = 6,408,498.53
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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.