Finding the Fourth Proportional to 9,577,721.47, 13,217,252.17 and 5,226,807.79
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Solution
The fourth proportional to 9,577,721.47, 13,217,252.17 and 5,226,807.79 is: 7,212,992.85
Step by Step Solution
- Step 1: Write the proportion equation
9,577,721.47 : 13,217,252.17 = 5,226,807.79 : x - Step 2: Convert to fraction form
9,577,721.47/13,217,252.17 = 5,226,807.79/x - Step 3: Cross multiply
9,577,721.47x = 13,217,252.17 × 5,226,807.79 - Step 4: Simplify right side
9,577,721.47x = 69,084,036,512,330.10 - Step 5: Solve for x
x = 69,084,036,512,330.10/9,577,721.47 - Step 6: Final answer
x = 7,212,992.85
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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.