Finding the Fourth Proportional to 219,749,400.45, 303,242,859.27 and 130,445,092.53
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Solution
The fourth proportional to 219,749,400.45, 303,242,859.27 and 130,445,092.53 is: 180,007,511.99
Step by Step Solution
- Step 1: Write the proportion equation
219,749,400.45 : 303,242,859.27 = 130,445,092.53 : x - Step 2: Convert to fraction form
219,749,400.45/303,242,859.27 = 130,445,092.53/x - Step 3: Cross multiply
219,749,400.45x = 303,242,859.27 × 130,445,092.53 - Step 4: Simplify right side
219,749,400.45x = 39,556,542,836,536,920 - Step 5: Solve for x
x = 39,556,542,836,536,920/219,749,400.45 - Step 6: Final answer
x = 180,007,511.99
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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.