Finding the Fourth Proportional to 66,497,589.20, 99,578,422.20 and 43,654,811.60
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Solution
The fourth proportional to 66,497,589.20, 99,578,422.20 and 43,654,811.60 is: 65,371,952.77
Step by Step Solution
- Step 1: Write the proportion equation
66,497,589.20 : 99,578,422.20 = 43,654,811.60 : x - Step 2: Convert to fraction form
66,497,589.20/99,578,422.20 = 43,654,811.60/x - Step 3: Cross multiply
66,497,589.20x = 99,578,422.20 × 43,654,811.60 - Step 4: Simplify right side
66,497,589.20x = 4,347,077,260,566,258 - Step 5: Solve for x
x = 4,347,077,260,566,258/66,497,589.20 - Step 6: Final answer
x = 65,371,952.77
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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.