Finding the Fourth Proportional to 988,023,261.57, 1,481,889,112.56 and 288,327,528.66
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Solution
The fourth proportional to 988,023,261.57, 1,481,889,112.56 and 288,327,528.66 is: 432,448,751.15
Step by Step Solution
- Step 1: Write the proportion equation
988,023,261.57 : 1,481,889,112.56 = 288,327,528.66 : x - Step 2: Convert to fraction form
988,023,261.57/1,481,889,112.56 = 288,327,528.66/x - Step 3: Cross multiply
988,023,261.57x = 1,481,889,112.56 × 288,327,528.66 - Step 4: Simplify right side
988,023,261.57x = 427,269,425,572,585,408 - Step 5: Solve for x
x = 427,269,425,572,585,408/988,023,261.57 - Step 6: Final answer
x = 432,448,751.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.