Finding the Fourth Proportional to 1,554,105,471.68, 2,144,884,302.24 and 989,409,970.28
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Solution
The fourth proportional to 1,554,105,471.68, 2,144,884,302.24 and 989,409,970.28 is: 1,365,525,025.43
Step by Step Solution
- Step 1: Write the proportion equation
1,554,105,471.68 : 2,144,884,302.24 = 989,409,970.28 : x - Step 2: Convert to fraction form
1,554,105,471.68/2,144,884,302.24 = 989,409,970.28/x - Step 3: Cross multiply
1,554,105,471.68x = 2,144,884,302.24 × 989,409,970.28 - Step 4: Simplify right side
1,554,105,471.68x = 2,122,169,913,733,316,864 - Step 5: Solve for x
x = 2,122,169,913,733,316,864/1,554,105,471.68 - Step 6: Final answer
x = 1,365,525,025.43
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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.