Finding the Fourth Proportional to 66,456,242.80, 99,684,364.20 and 39,134,489.20
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Solution
The fourth proportional to 66,456,242.80, 99,684,364.20 and 39,134,489.20 is: 58,701,733.80
Step by Step Solution
- Step 1: Write the proportion equation
66,456,242.80 : 99,684,364.20 = 39,134,489.20 : x - Step 2: Convert to fraction form
66,456,242.80/99,684,364.20 = 39,134,489.20/x - Step 3: Cross multiply
66,456,242.80x = 99,684,364.20 × 39,134,489.20 - Step 4: Simplify right side
66,456,242.80x = 3,901,096,674,193,767 - Step 5: Solve for x
x = 3,901,096,674,193,767/66,456,242.80 - Step 6: Final answer
x = 58,701,733.80
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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.