Finding the Fourth Proportional to 647,516,339.63, 971,135,348.21 and 204,894,094.67
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Solution
The fourth proportional to 647,516,339.63, 971,135,348.21 and 204,894,094.67 is: 307,297,107.11
Step by Step Solution
- Step 1: Write the proportion equation
647,516,339.63 : 971,135,348.21 = 204,894,094.67 : x - Step 2: Convert to fraction form
647,516,339.63/971,135,348.21 = 204,894,094.67/x - Step 3: Cross multiply
647,516,339.63x = 971,135,348.21 × 204,894,094.67 - Step 4: Simplify right side
647,516,339.63x = 198,979,897,972,498,688 - Step 5: Solve for x
x = 198,979,897,972,498,688/647,516,339.63 - Step 6: Final answer
x = 307,297,107.11
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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.