Finding the Fourth Proportional to 38,387,167.09, 57,580,750.83 and 12,828,176.53
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Solution
The fourth proportional to 38,387,167.09, 57,580,750.83 and 12,828,176.53 is: 19,242,264.86
Step by Step Solution
- Step 1: Write the proportion equation
38,387,167.09 : 57,580,750.83 = 12,828,176.53 : x - Step 2: Convert to fraction form
38,387,167.09/57,580,750.83 = 12,828,176.53/x - Step 3: Cross multiply
38,387,167.09x = 57,580,750.83 × 12,828,176.53 - Step 4: Simplify right side
38,387,167.09x = 738,656,036,377,184 - Step 5: Solve for x
x = 738,656,036,377,184/38,387,167.09 - Step 6: Final answer
x = 19,242,264.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.