Finding the Fourth Proportional to 26,418,556.42, 39,640,357.63 and 12,764,048.65
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Solution
The fourth proportional to 26,418,556.42, 39,640,357.63 and 12,764,048.65 is: 19,152,123.42
Step by Step Solution
- Step 1: Write the proportion equation
26,418,556.42 : 39,640,357.63 = 12,764,048.65 : x - Step 2: Convert to fraction form
26,418,556.42/39,640,357.63 = 12,764,048.65/x - Step 3: Cross multiply
26,418,556.42x = 39,640,357.63 × 12,764,048.65 - Step 4: Simplify right side
26,418,556.42x = 505,971,453,209,572.94 - Step 5: Solve for x
x = 505,971,453,209,572.94/26,418,556.42 - Step 6: Final answer
x = 19,152,123.42
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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.