Finding the Fourth Proportional to 15,819,988.76, 21,832,432.14 and 8,850,250.54
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Solution
The fourth proportional to 15,819,988.76, 21,832,432.14 and 8,850,250.54 is: 12,213,819.95
Step by Step Solution
- Step 1: Write the proportion equation
15,819,988.76 : 21,832,432.14 = 8,850,250.54 : x - Step 2: Convert to fraction form
15,819,988.76/21,832,432.14 = 8,850,250.54/x - Step 3: Cross multiply
15,819,988.76x = 21,832,432.14 × 8,850,250.54 - Step 4: Simplify right side
15,819,988.76x = 193,222,494,336,548.34 - Step 5: Solve for x
x = 193,222,494,336,548.34/15,819,988.76 - Step 6: Final answer
x = 12,213,819.95
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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.