Finding the Fourth Proportional to 83,791,795.80, 115,630,862.64 and 48,511,087.50
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Solution
The fourth proportional to 83,791,795.80, 115,630,862.64 and 48,511,087.50 is: 66,944,249.63
Step by Step Solution
- Step 1: Write the proportion equation
83,791,795.80 : 115,630,862.64 = 48,511,087.50 : x - Step 2: Convert to fraction form
83,791,795.80/115,630,862.64 = 48,511,087.50/x - Step 3: Cross multiply
83,791,795.80x = 115,630,862.64 × 48,511,087.50 - Step 4: Simplify right side
83,791,795.80x = 5,609,378,895,229,521 - Step 5: Solve for x
x = 5,609,378,895,229,521/83,791,795.80 - Step 6: Final answer
x = 66,944,249.63
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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.