Finding the Fourth Proportional to 13,402,277.52, 18,495,128.68 and 7,290,691.60
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Solution
The fourth proportional to 13,402,277.52, 18,495,128.68 and 7,290,691.60 is: 10,061,146.63
Step by Step Solution
- Step 1: Write the proportion equation
13,402,277.52 : 18,495,128.68 = 7,290,691.60 : x - Step 2: Convert to fraction form
13,402,277.52/18,495,128.68 = 7,290,691.60/x - Step 3: Cross multiply
13,402,277.52x = 18,495,128.68 × 7,290,691.60 - Step 4: Simplify right side
13,402,277.52x = 134,842,279,308,195.08 - Step 5: Solve for x
x = 134,842,279,308,195.08/13,402,277.52 - Step 6: Final answer
x = 10,061,146.63
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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.