Finding the Fourth Proportional to 18,656,292.60, 28,026,429.30 and 18,152,407.80
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Solution
The fourth proportional to 18,656,292.60, 28,026,429.30 and 18,152,407.80 is: 27,269,467.99
Step by Step Solution
- Step 1: Write the proportion equation
18,656,292.60 : 28,026,429.30 = 18,152,407.80 : x - Step 2: Convert to fraction form
18,656,292.60/28,026,429.30 = 18,152,407.80/x - Step 3: Cross multiply
18,656,292.60x = 28,026,429.30 × 18,152,407.80 - Step 4: Simplify right side
18,656,292.60x = 508,747,173,831,468.56 - Step 5: Solve for x
x = 508,747,173,831,468.56/18,656,292.60 - Step 6: Final answer
x = 27,269,467.99
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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.