Finding the Fourth Proportional to 1,342,184,591.63, 2,013,348,631.98 and 422,132,674.79
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Solution
The fourth proportional to 1,342,184,591.63, 2,013,348,631.98 and 422,132,674.79 is: 633,221,576.67
Step by Step Solution
- Step 1: Write the proportion equation
1,342,184,591.63 : 2,013,348,631.98 = 422,132,674.79 : x - Step 2: Convert to fraction form
1,342,184,591.63/2,013,348,631.98 = 422,132,674.79/x - Step 3: Cross multiply
1,342,184,591.63x = 2,013,348,631.98 × 422,132,674.79 - Step 4: Simplify right side
1,342,184,591.63x = 849,900,243,292,438,016 - Step 5: Solve for x
x = 849,900,243,292,438,016/1,342,184,591.63 - Step 6: Final answer
x = 633,221,576.67
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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.