Finding the Third Proportional to 291,639,920 and 688,443,503
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Solution
The third proportional to 291,639,920 and 688,443,503 is: 1,625,135,738.70
Step by Step Solution
- Step 1: Write the proportion equation
291,639,920 : 688,443,503 = 688,443,503 : x - Step 2: Convert to fraction form
291,639,920/688,443,503 = 688,443,503/x - Step 3: Cross multiply
291,639,920x = 688,443,503 × 688,443,503 - Step 4: Simplify right side
291,639,920x = 473,954,456,822,911,040 - Step 5: Solve for x
x = 473,954,456,822,911,040/291,639,920 - Step 6: Final answer
x = 1,625,135,738.70
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Why These Related Problems?
These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.