Finding the Fourth Proportional to 81,867,466.70, 122,865,376.36 and 57,114,422.36
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Solution
The fourth proportional to 81,867,466.70, 122,865,376.36 and 57,114,422.36 is: 85,716,405.82
Step by Step Solution
- Step 1: Write the proportion equation
81,867,466.70 : 122,865,376.36 = 57,114,422.36 : x - Step 2: Convert to fraction form
81,867,466.70/122,865,376.36 = 57,114,422.36/x - Step 3: Cross multiply
81,867,466.70x = 122,865,376.36 × 57,114,422.36 - Step 4: Simplify right side
81,867,466.70x = 7,017,384,998,845,399 - Step 5: Solve for x
x = 7,017,384,998,845,399/81,867,466.70 - Step 6: Final answer
x = 85,716,405.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.