Finding the Fourth Proportional to 38,865,961.26, 58,259,925.81 and 13,289,479.02
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Solution
The fourth proportional to 38,865,961.26, 58,259,925.81 and 13,289,479.02 is: 19,920,877.72
Step by Step Solution
- Step 1: Write the proportion equation
38,865,961.26 : 58,259,925.81 = 13,289,479.02 : x - Step 2: Convert to fraction form
38,865,961.26/58,259,925.81 = 13,289,479.02/x - Step 3: Cross multiply
38,865,961.26x = 58,259,925.81 × 13,289,479.02 - Step 4: Simplify right side
38,865,961.26x = 774,244,061,758,751.50 - Step 5: Solve for x
x = 774,244,061,758,751.50/38,865,961.26 - Step 6: Final answer
x = 19,920,877.72
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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.