Finding the Fourth Proportional to 19,419,840.90, 29,105,403.45 and 10,299,427.62
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Solution
The fourth proportional to 19,419,840.90, 29,105,403.45 and 10,299,427.62 is: 15,436,223.07
Step by Step Solution
- Step 1: Write the proportion equation
19,419,840.90 : 29,105,403.45 = 10,299,427.62 : x - Step 2: Convert to fraction form
19,419,840.90/29,105,403.45 = 10,299,427.62/x - Step 3: Cross multiply
19,419,840.90x = 29,105,403.45 × 10,299,427.62 - Step 4: Simplify right side
19,419,840.90x = 299,768,996,184,173.25 - Step 5: Solve for x
x = 299,768,996,184,173.25/19,419,840.90 - Step 6: Final answer
x = 15,436,223.07
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1.5x scale
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.