Finding the Fourth Proportional to 7,486,790.05, 10,331,777.12 and 4,049,031.09
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Solution
The fourth proportional to 7,486,790.05, 10,331,777.12 and 4,049,031.09 is: 5,587,666.61
Step by Step Solution
- Step 1: Write the proportion equation
7,486,790.05 : 10,331,777.12 = 4,049,031.09 : x - Step 2: Convert to fraction form
7,486,790.05/10,331,777.12 = 4,049,031.09/x - Step 3: Cross multiply
7,486,790.05x = 10,331,777.12 × 4,049,031.09 - Step 4: Simplify right side
7,486,790.05x = 41,833,686,773,830.66 - Step 5: Solve for x
x = 41,833,686,773,830.66/7,486,790.05 - Step 6: Final answer
x = 5,587,666.61
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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.