Finding the Fourth Proportional to 12,860,222.18, 19,367,316.99 and 11,712,309.62
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Solution
The fourth proportional to 12,860,222.18, 19,367,316.99 and 11,712,309.62 is: 17,638,576.52
Step by Step Solution
- Step 1: Write the proportion equation
12,860,222.18 : 19,367,316.99 = 11,712,309.62 : x - Step 2: Convert to fraction form
12,860,222.18/19,367,316.99 = 11,712,309.62/x - Step 3: Cross multiply
12,860,222.18x = 19,367,316.99 × 11,712,309.62 - Step 4: Simplify right side
12,860,222.18x = 226,836,012,991,122.41 - Step 5: Solve for x
x = 226,836,012,991,122.41/12,860,222.18 - Step 6: Final answer
x = 17,638,576.52
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.