Finding the Fourth Proportional to 15,352,257.98, 21,177,235.05 and 9,919,749.98
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Solution
The fourth proportional to 15,352,257.98, 21,177,235.05 and 9,919,749.98 is: 13,683,516.60
Step by Step Solution
- Step 1: Write the proportion equation
15,352,257.98 : 21,177,235.05 = 9,919,749.98 : x - Step 2: Convert to fraction form
15,352,257.98/21,177,235.05 = 9,919,749.98/x - Step 3: Cross multiply
15,352,257.98x = 21,177,235.05 × 9,919,749.98 - Step 4: Simplify right side
15,352,257.98x = 210,072,876,979,436.84 - Step 5: Solve for x
x = 210,072,876,979,436.84/15,352,257.98 - Step 6: Final answer
x = 13,683,516.60
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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.