Finding the Fourth Proportional to 30,537,615.12, 42,141,953.88 and 16,786,663.08
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Solution
The fourth proportional to 30,537,615.12, 42,141,953.88 and 16,786,663.08 is: 23,165,619.80
Step by Step Solution
- Step 1: Write the proportion equation
30,537,615.12 : 42,141,953.88 = 16,786,663.08 : x - Step 2: Convert to fraction form
30,537,615.12/42,141,953.88 = 16,786,663.08/x - Step 3: Cross multiply
30,537,615.12x = 42,141,953.88 × 16,786,663.08 - Step 4: Simplify right side
30,537,615.12x = 707,422,781,316,458.75 - Step 5: Solve for x
x = 707,422,781,316,458.75/30,537,615.12 - Step 6: Final answer
x = 23,165,619.80
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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.