Finding the Fourth Proportional to 45,609,664.40, 68,453,203.80 and 18,702,630.80
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Solution
The fourth proportional to 45,609,664.40, 68,453,203.80 and 18,702,630.80 is: 28,069,818.42
Step by Step Solution
- Step 1: Write the proportion equation
45,609,664.40 : 68,453,203.80 = 18,702,630.80 : x - Step 2: Convert to fraction form
45,609,664.40/68,453,203.80 = 18,702,630.80/x - Step 3: Cross multiply
45,609,664.40x = 68,453,203.80 × 18,702,630.80 - Step 4: Simplify right side
45,609,664.40x = 1,280,254,997,748,557 - Step 5: Solve for x
x = 1,280,254,997,748,557/45,609,664.40 - Step 6: Final answer
x = 28,069,818.42
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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.