Finding the Fourth Proportional to 7,406,521.70, 11,109,782.55 and 6,146,809.70
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Solution
The fourth proportional to 7,406,521.70, 11,109,782.55 and 6,146,809.70 is: 9,220,214.55
Step by Step Solution
- Step 1: Write the proportion equation
7,406,521.70 : 11,109,782.55 = 6,146,809.70 : x - Step 2: Convert to fraction form
7,406,521.70/11,109,782.55 = 6,146,809.70/x - Step 3: Cross multiply
7,406,521.70x = 11,109,782.55 × 6,146,809.70 - Step 4: Simplify right side
7,406,521.70x = 68,289,719,143,230.74 - Step 5: Solve for x
x = 68,289,719,143,230.74/7,406,521.70 - Step 6: Final answer
x = 9,220,214.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.