Finding the Fourth Proportional to 81,190,981.53, 112,048,656.35 and 44,521,552.53
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Solution
The fourth proportional to 81,190,981.53, 112,048,656.35 and 44,521,552.53 is: 61,442,540.11
Step by Step Solution
- Step 1: Write the proportion equation
81,190,981.53 : 112,048,656.35 = 44,521,552.53 : x - Step 2: Convert to fraction form
81,190,981.53/112,048,656.35 = 44,521,552.53/x - Step 3: Cross multiply
81,190,981.53x = 112,048,656.35 × 44,521,552.53 - Step 4: Simplify right side
81,190,981.53x = 4,988,580,139,379,835 - Step 5: Solve for x
x = 4,988,580,139,379,835/81,190,981.53 - Step 6: Final answer
x = 61,442,540.11
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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.