Finding the Fourth Proportional to 212,217,493.28, 292,801,330.87 and 127,422,588.00
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Solution
The fourth proportional to 212,217,493.28, 292,801,330.87 and 127,422,588.00 is: 175,807,860.00
Step by Step Solution
- Step 1: Write the proportion equation
212,217,493.28 : 292,801,330.87 = 127,422,588.00 : x - Step 2: Convert to fraction form
212,217,493.28/292,801,330.87 = 127,422,588.00/x - Step 3: Cross multiply
212,217,493.28x = 292,801,330.87 × 127,422,588.00 - Step 4: Simplify right side
212,217,493.28x = 37,309,503,348,360,960 - Step 5: Solve for x
x = 37,309,503,348,360,960/212,217,493.28 - Step 6: Final answer
x = 175,807,860.00
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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.