Finding the Fourth Proportional to 129,364,420.56, 178,603,482.66 and 82,348,032.12
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Solution
The fourth proportional to 129,364,420.56, 178,603,482.66 and 82,348,032.12 is: 113,691,579.67
Step by Step Solution
- Step 1: Write the proportion equation
129,364,420.56 : 178,603,482.66 = 82,348,032.12 : x - Step 2: Convert to fraction form
129,364,420.56/178,603,482.66 = 82,348,032.12/x - Step 3: Cross multiply
129,364,420.56x = 178,603,482.66 × 82,348,032.12 - Step 4: Simplify right side
129,364,420.56x = 14,707,645,326,829,544 - Step 5: Solve for x
x = 14,707,645,326,829,544/129,364,420.56 - Step 6: Final answer
x = 113,691,579.67
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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.