Finding the Fourth Proportional to 68,125,254.21, 93,998,816.64 and 39,146,279.49
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Solution
The fourth proportional to 68,125,254.21, 93,998,816.64 and 39,146,279.49 is: 54,013,801.35
Step by Step Solution
- Step 1: Write the proportion equation
68,125,254.21 : 93,998,816.64 = 39,146,279.49 : x - Step 2: Convert to fraction form
68,125,254.21/93,998,816.64 = 39,146,279.49/x - Step 3: Cross multiply
68,125,254.21x = 93,998,816.64 × 39,146,279.49 - Step 4: Simplify right side
68,125,254.21x = 3,679,703,947,918,703 - Step 5: Solve for x
x = 3,679,703,947,918,703/68,125,254.21 - Step 6: Final answer
x = 54,013,801.35
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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.