Finding the Fourth Proportional to 1,324,950,936.54, 1,828,408,571.13 and 722,126,989.18
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Solution
The fourth proportional to 1,324,950,936.54, 1,828,408,571.13 and 722,126,989.18 is: 996,522,316.45
Step by Step Solution
- Step 1: Write the proportion equation
1,324,950,936.54 : 1,828,408,571.13 = 722,126,989.18 : x - Step 2: Convert to fraction form
1,324,950,936.54/1,828,408,571.13 = 722,126,989.18/x - Step 3: Cross multiply
1,324,950,936.54x = 1,828,408,571.13 × 722,126,989.18 - Step 4: Simplify right side
1,324,950,936.54x = 1,320,343,176,461,012,736 - Step 5: Solve for x
x = 1,320,343,176,461,012,736/1,324,950,936.54 - Step 6: Final answer
x = 996,522,316.45
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1.5x scale
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.