Finding the Fourth Proportional to 19,957,323.20, 29,935,984.80 and 13,580,031.20
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Solution
The fourth proportional to 19,957,323.20, 29,935,984.80 and 13,580,031.20 is: 20,370,046.80
Step by Step Solution
- Step 1: Write the proportion equation
19,957,323.20 : 29,935,984.80 = 13,580,031.20 : x - Step 2: Convert to fraction form
19,957,323.20/29,935,984.80 = 13,580,031.20/x - Step 3: Cross multiply
19,957,323.20x = 29,935,984.80 × 13,580,031.20 - Step 4: Simplify right side
19,957,323.20x = 406,531,607,586,725.75 - Step 5: Solve for x
x = 406,531,607,586,725.75/19,957,323.20 - Step 6: Final answer
x = 20,370,046.80
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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.