Finding the Fourth Proportional to 13,286,935.68, 18,335,971.04 and 7,175,363.52
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Solution
The fourth proportional to 13,286,935.68, 18,335,971.04 and 7,175,363.52 is: 9,902,001.55
Step by Step Solution
- Step 1: Write the proportion equation
13,286,935.68 : 18,335,971.04 = 7,175,363.52 : x - Step 2: Convert to fraction form
13,286,935.68/18,335,971.04 = 7,175,363.52/x - Step 3: Cross multiply
13,286,935.68x = 18,335,971.04 × 7,175,363.52 - Step 4: Simplify right side
13,286,935.68x = 131,567,257,704,192.45 - Step 5: Solve for x
x = 131,567,257,704,192.45/13,286,935.68 - Step 6: Final answer
x = 9,902,001.55
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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.