Finding the Fourth Proportional to 248,541,248.12, 372,850,179.10 and 84,740,697.70
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Solution
The fourth proportional to 248,541,248.12, 372,850,179.10 and 84,740,697.70 is: 127,124,107.38
Step by Step Solution
- Step 1: Write the proportion equation
248,541,248.12 : 372,850,179.10 = 84,740,697.70 : x - Step 2: Convert to fraction form
248,541,248.12/372,850,179.10 = 84,740,697.70/x - Step 3: Cross multiply
248,541,248.12x = 372,850,179.10 × 84,740,697.70 - Step 4: Simplify right side
248,541,248.12x = 31,595,584,314,503,960 - Step 5: Solve for x
x = 31,595,584,314,503,960/248,541,248.12 - Step 6: Final answer
x = 127,124,107.38
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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.