Finding the Fourth Proportional to 221,893,486.68, 306,196,383.42 and 124,089,447
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Solution
The fourth proportional to 221,893,486.68, 306,196,383.42 and 124,089,447 is: 171,234,137.88
Step by Step Solution
- Step 1: Write the proportion equation
221,893,486.68 : 306,196,383.42 = 124,089,447 : x - Step 2: Convert to fraction form
221,893,486.68/306,196,383.42 = 124,089,447/x - Step 3: Cross multiply
221,893,486.68x = 306,196,383.42 × 124,089,447 - Step 4: Simplify right side
221,893,486.68x = 37,995,739,891,987,768 - Step 5: Solve for x
x = 37,995,739,891,987,768/221,893,486.68 - Step 6: Final answer
x = 171,234,137.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.