Finding the Fourth Proportional to 13,622,750.61, 18,803,951.35 and 8,117,852.30
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Solution
The fourth proportional to 13,622,750.61, 18,803,951.35 and 8,117,852.30 is: 11,205,350.82
Step by Step Solution
- Step 1: Write the proportion equation
13,622,750.61 : 18,803,951.35 = 8,117,852.30 : x - Step 2: Convert to fraction form
13,622,750.61/18,803,951.35 = 8,117,852.30/x - Step 3: Cross multiply
13,622,750.61x = 18,803,951.35 × 8,117,852.30 - Step 4: Simplify right side
13,622,750.61x = 152,647,699,671,886.03 - Step 5: Solve for x
x = 152,647,699,671,886.03/13,622,750.61 - Step 6: Final answer
x = 11,205,350.82
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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.