Finding the Fourth Proportional to 138,929,545.80, 191,757,613.68 and 94,350,945.78
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Solution
The fourth proportional to 138,929,545.80, 191,757,613.68 and 94,350,945.78 is: 130,227,966.32
Step by Step Solution
- Step 1: Write the proportion equation
138,929,545.80 : 191,757,613.68 = 94,350,945.78 : x - Step 2: Convert to fraction form
138,929,545.80/191,757,613.68 = 94,350,945.78/x - Step 3: Cross multiply
138,929,545.80x = 191,757,613.68 × 94,350,945.78 - Step 4: Simplify right side
138,929,545.80x = 18,092,512,211,223,868 - Step 5: Solve for x
x = 18,092,512,211,223,868/138,929,545.80 - Step 6: Final answer
x = 130,227,966.32
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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.