Finding the Fourth Proportional to 885,696,035.70, 1,328,544,053.55 and 394,408,355.70
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Solution
The fourth proportional to 885,696,035.70, 1,328,544,053.55 and 394,408,355.70 is: 591,612,533.55
Step by Step Solution
- Step 1: Write the proportion equation
885,696,035.70 : 1,328,544,053.55 = 394,408,355.70 : x - Step 2: Convert to fraction form
885,696,035.70/1,328,544,053.55 = 394,408,355.70/x - Step 3: Cross multiply
885,696,035.70x = 1,328,544,053.55 × 394,408,355.70 - Step 4: Simplify right side
885,696,035.70x = 523,988,875,635,668,224 - Step 5: Solve for x
x = 523,988,875,635,668,224/885,696,035.70 - Step 6: Final answer
x = 591,612,533.55
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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.