Finding the Fourth Proportional to 212,299,560.72, 293,063,790.24 and 142,725,294
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Solution
The fourth proportional to 212,299,560.72, 293,063,790.24 and 142,725,294 is: 197,021,677.68
Step by Step Solution
- Step 1: Write the proportion equation
212,299,560.72 : 293,063,790.24 = 142,725,294 : x - Step 2: Convert to fraction form
212,299,560.72/293,063,790.24 = 142,725,294/x - Step 3: Cross multiply
212,299,560.72x = 293,063,790.24 × 142,725,294 - Step 4: Simplify right side
212,299,560.72x = 41,827,615,622,758,328 - Step 5: Solve for x
x = 41,827,615,622,758,328/212,299,560.72 - Step 6: Final answer
x = 197,021,677.68
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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.