Finding the Fourth Proportional to 38,730,830, 53,448,545.28 and 21,327,133.76
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Solution
The fourth proportional to 38,730,830, 53,448,545.28 and 21,327,133.76 is: 29,431,444.52
Step by Step Solution
- Step 1: Write the proportion equation
38,730,830 : 53,448,545.28 = 21,327,133.76 : x - Step 2: Convert to fraction form
38,730,830/53,448,545.28 = 21,327,133.76/x - Step 3: Cross multiply
38,730,830x = 53,448,545.28 × 21,327,133.76 - Step 4: Simplify right side
38,730,830x = 1,139,904,274,463,976.75 - Step 5: Solve for x
x = 1,139,904,274,463,976.75/38,730,830 - Step 6: Final answer
x = 29,431,444.52
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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.