Finding the Fourth Proportional to 5,390,656.17, 7,439,005.74 and 3,067,497.20
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Solution
The fourth proportional to 5,390,656.17, 7,439,005.74 and 3,067,497.20 is: 4,233,089.36
Step by Step Solution
- Step 1: Write the proportion equation
5,390,656.17 : 7,439,005.74 = 3,067,497.20 : x - Step 2: Convert to fraction form
5,390,656.17/7,439,005.74 = 3,067,497.20/x - Step 3: Cross multiply
5,390,656.17x = 7,439,005.74 × 3,067,497.20 - Step 4: Simplify right side
5,390,656.17x = 22,819,129,278,233.93 - Step 5: Solve for x
x = 22,819,129,278,233.93/5,390,656.17 - Step 6: Final answer
x = 4,233,089.36
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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.