Finding the Fourth Proportional to 38,676,320.19, 53,374,331.40 and 21,273,122.08
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Solution
The fourth proportional to 38,676,320.19, 53,374,331.40 and 21,273,122.08 is: 29,357,463.75
Step by Step Solution
- Step 1: Write the proportion equation
38,676,320.19 : 53,374,331.40 = 21,273,122.08 : x - Step 2: Convert to fraction form
38,676,320.19/53,374,331.40 = 21,273,122.08/x - Step 3: Cross multiply
38,676,320.19x = 53,374,331.40 × 21,273,122.08 - Step 4: Simplify right side
38,676,320.19x = 1,135,438,667,810,577.25 - Step 5: Solve for x
x = 1,135,438,667,810,577.25/38,676,320.19 - Step 6: Final answer
x = 29,357,463.75
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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.