Finding the Fourth Proportional to 66,428,149.70, 99,684,214.95 and 39,134,389.70
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Solution
The fourth proportional to 66,428,149.70, 99,684,214.95 and 39,134,389.70 is: 58,726,322.08
Step by Step Solution
- Step 1: Write the proportion equation
66,428,149.70 : 99,684,214.95 = 39,134,389.70 : x - Step 2: Convert to fraction form
66,428,149.70/99,684,214.95 = 39,134,389.70/x - Step 3: Cross multiply
66,428,149.70x = 99,684,214.95 × 39,134,389.70 - Step 4: Simplify right side
66,428,149.70x = 3,901,080,914,791,866.50 - Step 5: Solve for x
x = 3,901,080,914,791,866.50/66,428,149.70 - Step 6: Final answer
x = 58,726,322.08
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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.