Finding the Fourth Proportional to 38,426,534.11, 53,029,214.94 and 21,023,169.97
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Solution
The fourth proportional to 38,426,534.11, 53,029,214.94 and 21,023,169.97 is: 29,012,301.65
Step by Step Solution
- Step 1: Write the proportion equation
38,426,534.11 : 53,029,214.94 = 21,023,169.97 : x - Step 2: Convert to fraction form
38,426,534.11/53,029,214.94 = 21,023,169.97/x - Step 3: Cross multiply
38,426,534.11x = 53,029,214.94 × 21,023,169.97 - Step 4: Simplify right side
38,426,534.11x = 1,114,842,199,059,283.25 - Step 5: Solve for x
x = 1,114,842,199,059,283.25/38,426,534.11 - Step 6: Final answer
x = 29,012,301.65
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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.