Finding the Fourth Proportional to 245,737,278.21, 339,115,151.40 and 134,228,076.35
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Solution
The fourth proportional to 245,737,278.21, 339,115,151.40 and 134,228,076.35 is: 185,233,493.12
Step by Step Solution
- Step 1: Write the proportion equation
245,737,278.21 : 339,115,151.40 = 134,228,076.35 : x - Step 2: Convert to fraction form
245,737,278.21/339,115,151.40 = 134,228,076.35/x - Step 3: Cross multiply
245,737,278.21x = 339,115,151.40 × 134,228,076.35 - Step 4: Simplify right side
245,737,278.21x = 45,518,774,431,865,432 - Step 5: Solve for x
x = 45,518,774,431,865,432/245,737,278.21 - Step 6: Final answer
x = 185,233,493.12
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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.