Finding the Fourth Proportional to 217,326,324.72, 299,912,491.80 and 118,209,378
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Solution
The fourth proportional to 217,326,324.72, 299,912,491.80 and 118,209,378 is: 163,130,118.52
Step by Step Solution
- Step 1: Write the proportion equation
217,326,324.72 : 299,912,491.80 = 118,209,378 : x - Step 2: Convert to fraction form
217,326,324.72/299,912,491.80 = 118,209,378/x - Step 3: Cross multiply
217,326,324.72x = 299,912,491.80 × 118,209,378 - Step 4: Simplify right side
217,326,324.72x = 35,452,469,110,108,100 - Step 5: Solve for x
x = 35,452,469,110,108,100/217,326,324.72 - Step 6: Final answer
x = 163,130,118.52
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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.