Finding the Fourth Proportional to 98,496,720.90, 147,745,081.35 and 66,248,093.70
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Solution
The fourth proportional to 98,496,720.90, 147,745,081.35 and 66,248,093.70 is: 99,372,140.55
Step by Step Solution
- Step 1: Write the proportion equation
98,496,720.90 : 147,745,081.35 = 66,248,093.70 : x - Step 2: Convert to fraction form
98,496,720.90/147,745,081.35 = 66,248,093.70/x - Step 3: Cross multiply
98,496,720.90x = 147,745,081.35 × 66,248,093.70 - Step 4: Simplify right side
98,496,720.90x = 9,787,829,992,988,922 - Step 5: Solve for x
x = 9,787,829,992,988,922/98,496,720.90 - Step 6: Final answer
x = 99,372,140.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.