Finding the Fourth Proportional to 209,894,408.02, 289,663,043.61 and 115,814,657.94
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Solution
The fourth proportional to 209,894,408.02, 289,663,043.61 and 115,814,657.94 is: 159,829,061.81
Step by Step Solution
- Step 1: Write the proportion equation
209,894,408.02 : 289,663,043.61 = 115,814,657.94 : x - Step 2: Convert to fraction form
209,894,408.02/289,663,043.61 = 115,814,657.94/x - Step 3: Cross multiply
209,894,408.02x = 289,663,043.61 × 115,814,657.94 - Step 4: Simplify right side
209,894,408.02x = 33,547,226,313,551,452 - Step 5: Solve for x
x = 33,547,226,313,551,452/209,894,408.02 - Step 6: Final answer
x = 159,829,061.81
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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.