Finding the Fourth Proportional to 81,738,974.01, 112,827,117.82 and 48,709,580.52
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Solution
The fourth proportional to 81,738,974.01, 112,827,117.82 and 48,709,580.52 is: 67,235,509.70
Step by Step Solution
- Step 1: Write the proportion equation
81,738,974.01 : 112,827,117.82 = 48,709,580.52 : x - Step 2: Convert to fraction form
81,738,974.01/112,827,117.82 = 48,709,580.52/x - Step 3: Cross multiply
81,738,974.01x = 112,827,117.82 × 48,709,580.52 - Step 4: Simplify right side
81,738,974.01x = 5,495,761,580,292,817 - Step 5: Solve for x
x = 5,495,761,580,292,817/81,738,974.01 - Step 6: Final answer
x = 67,235,509.70
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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.