Finding the Fourth Proportional to 1,974,701,907.60, 2,725,366,248 and 1,222,256,431.68
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Solution
The fourth proportional to 1,974,701,907.60, 2,725,366,248 and 1,222,256,431.68 is: 1,686,885,707.90
Step by Step Solution
- Step 1: Write the proportion equation
1,974,701,907.60 : 2,725,366,248 = 1,222,256,431.68 : x - Step 2: Convert to fraction form
1,974,701,907.60/2,725,366,248 = 1,222,256,431.68/x - Step 3: Cross multiply
1,974,701,907.60x = 2,725,366,248 × 1,222,256,431.68 - Step 4: Simplify right side
1,974,701,907.60x = 3,331,096,425,301,590,016 - Step 5: Solve for x
x = 3,331,096,425,301,590,016/1,974,701,907.60 - Step 6: Final answer
x = 1,686,885,707.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.