Finding the Fourth Proportional to 19,688,757.40, 29,533,136.10 and 12,753,452.35
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Solution
The fourth proportional to 19,688,757.40, 29,533,136.10 and 12,753,452.35 is: 19,130,178.53
Step by Step Solution
- Step 1: Write the proportion equation
19,688,757.40 : 29,533,136.10 = 12,753,452.35 : x - Step 2: Convert to fraction form
19,688,757.40/29,533,136.10 = 12,753,452.35/x - Step 3: Cross multiply
19,688,757.40x = 29,533,136.10 × 12,753,452.35 - Step 4: Simplify right side
19,688,757.40x = 376,649,443,997,414.81 - Step 5: Solve for x
x = 376,649,443,997,414.81/19,688,757.40 - Step 6: Final answer
x = 19,130,178.53
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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.