Finding the Fourth Proportional to 74,603,976.80, 111,905,965.20 and 44,296,239.20
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Solution
The fourth proportional to 74,603,976.80, 111,905,965.20 and 44,296,239.20 is: 66,444,358.80
Step by Step Solution
- Step 1: Write the proportion equation
74,603,976.80 : 111,905,965.20 = 44,296,239.20 : x - Step 2: Convert to fraction form
74,603,976.80/111,905,965.20 = 44,296,239.20/x - Step 3: Cross multiply
74,603,976.80x = 111,905,965.20 × 44,296,239.20 - Step 4: Simplify right side
74,603,976.80x = 4,957,013,402,406,076 - Step 5: Solve for x
x = 4,957,013,402,406,076/74,603,976.80 - Step 6: Final answer
x = 66,444,358.80
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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.