Finding the Fourth Proportional to 38,718,855.48, 53,316,781.38 and 37,859,583.18
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Solution
The fourth proportional to 38,718,855.48, 53,316,781.38 and 37,859,583.18 is: 52,133,543.06
Step by Step Solution
- Step 1: Write the proportion equation
38,718,855.48 : 53,316,781.38 = 37,859,583.18 : x - Step 2: Convert to fraction form
38,718,855.48/53,316,781.38 = 37,859,583.18/x - Step 3: Cross multiply
38,718,855.48x = 53,316,781.38 × 37,859,583.18 - Step 4: Simplify right side
38,718,855.48x = 2,018,551,119,545,985.25 - Step 5: Solve for x
x = 2,018,551,119,545,985.25/38,718,855.48 - Step 6: Final answer
x = 52,133,543.06
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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.