Finding the Fourth Proportional to 20,117,774.16, 30,177,394.20 and 7,164,877.36
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Solution
The fourth proportional to 20,117,774.16, 30,177,394.20 and 7,164,877.36 is: 10,747,577.08
Step by Step Solution
- Step 1: Write the proportion equation
20,117,774.16 : 30,177,394.20 = 7,164,877.36 : x - Step 2: Convert to fraction form
20,117,774.16/30,177,394.20 = 7,164,877.36/x - Step 3: Cross multiply
20,117,774.16x = 30,177,394.20 × 7,164,877.36 - Step 4: Simplify right side
20,117,774.16x = 216,217,328,487,375.31 - Step 5: Solve for x
x = 216,217,328,487,375.31/20,117,774.16 - Step 6: Final answer
x = 10,747,577.08
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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.