Finding the Fourth Proportional to 143,802,603.70, 215,703,905.55 and 119,887,758.70
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Solution
The fourth proportional to 143,802,603.70, 215,703,905.55 and 119,887,758.70 is: 179,831,638.05
Step by Step Solution
- Step 1: Write the proportion equation
143,802,603.70 : 215,703,905.55 = 119,887,758.70 : x - Step 2: Convert to fraction form
143,802,603.70/215,703,905.55 = 119,887,758.70/x - Step 3: Cross multiply
143,802,603.70x = 215,703,905.55 × 119,887,758.70 - Step 4: Simplify right side
143,802,603.70x = 25,860,257,779,225,992 - Step 5: Solve for x
x = 25,860,257,779,225,992/143,802,603.70 - Step 6: Final answer
x = 179,831,638.05
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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.