Finding the Fourth Proportional to 90,696,194.08, 125,121,241.40 and 57,638,726.80
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Solution
The fourth proportional to 90,696,194.08, 125,121,241.40 and 57,638,726.80 is: 79,516,336.08
Step by Step Solution
- Step 1: Write the proportion equation
90,696,194.08 : 125,121,241.40 = 57,638,726.80 : x - Step 2: Convert to fraction form
90,696,194.08/125,121,241.40 = 57,638,726.80/x - Step 3: Cross multiply
90,696,194.08x = 125,121,241.40 × 57,638,726.80 - Step 4: Simplify right side
90,696,194.08x = 7,211,829,049,931,449 - Step 5: Solve for x
x = 7,211,829,049,931,449/90,696,194.08 - Step 6: Final answer
x = 79,516,336.08
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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.