Finding the Fourth Proportional to 84,515,554.37, 116,740,871.06 and 69,890,298.05
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Solution
The fourth proportional to 84,515,554.37, 116,740,871.06 and 69,890,298.05 is: 96,539,084.83
Step by Step Solution
- Step 1: Write the proportion equation
84,515,554.37 : 116,740,871.06 = 69,890,298.05 : x - Step 2: Convert to fraction form
84,515,554.37/116,740,871.06 = 69,890,298.05/x - Step 3: Cross multiply
84,515,554.37x = 116,740,871.06 × 69,890,298.05 - Step 4: Simplify right side
84,515,554.37x = 8,159,054,272,942,420 - Step 5: Solve for x
x = 8,159,054,272,942,420/84,515,554.37 - Step 6: Final answer
x = 96,539,084.83
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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.