Finding the Fourth Proportional to 98,496,716.40, 147,745,074.60 and 66,248,089.20
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Solution
The fourth proportional to 98,496,716.40, 147,745,074.60 and 66,248,089.20 is: 99,372,133.80
Step by Step Solution
- Step 1: Write the proportion equation
98,496,716.40 : 147,745,074.60 = 66,248,089.20 : x - Step 2: Convert to fraction form
98,496,716.40/147,745,074.60 = 66,248,089.20/x - Step 3: Cross multiply
98,496,716.40x = 147,745,074.60 × 66,248,089.20 - Step 4: Simplify right side
98,496,716.40x = 9,787,828,880,961,454 - Step 5: Solve for x
x = 9,787,828,880,961,454/98,496,716.40 - Step 6: Final answer
x = 99,372,133.80
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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.