Finding the Fourth Proportional to 216,777,486.09, 299,153,259.54 and 117,658,269.66
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Solution
The fourth proportional to 216,777,486.09, 299,153,259.54 and 117,658,269.66 is: 162,368,590.56
Step by Step Solution
- Step 1: Write the proportion equation
216,777,486.09 : 299,153,259.54 = 117,658,269.66 : x - Step 2: Convert to fraction form
216,777,486.09/299,153,259.54 = 117,658,269.66/x - Step 3: Cross multiply
216,777,486.09x = 299,153,259.54 × 117,658,269.66 - Step 4: Simplify right side
216,777,486.09x = 35,197,854,880,625,288 - Step 5: Solve for x
x = 35,197,854,880,625,288/216,777,486.09 - Step 6: Final answer
x = 162,368,590.56
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1.5x scale
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.