Finding the Fourth Proportional to 1,177,279,245,136.40, 1,624,947,639,496.40 and 766,770,674,232.25
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Solution
The fourth proportional to 1,177,279,245,136.40, 1,624,947,639,496.40 and 766,770,674,232.25 is: 1,058,340,408,425.70
Step by Step Solution
- Step 1: Write the proportion equation
1,177,279,245,136.40 : 1,624,947,639,496.40 = 766,770,674,232.25 : x - Step 2: Convert to fraction form
1,177,279,245,136.40/1,624,947,639,496.40 = 766,770,674,232.25/x - Step 3: Cross multiply
1,177,279,245,136.40x = 1,624,947,639,496.40 × 766,770,674,232.25 - Step 4: Simplify right side
1,177,279,245,136.40x = 1,245,962,197,128,757,706,227,712 - Step 5: Solve for x
x = 1,245,962,197,128,757,706,227,712/1,177,279,245,136.40 - Step 6: Final answer
x = 1,058,340,408,425.70
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Double scale
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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.