Finding the Fourth Proportional to 66,473,132.40, 99,719,029.80 and 21,030,188.40
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Solution
The fourth proportional to 66,473,132.40, 99,719,029.80 and 21,030,188.40 is: 31,548,234.72
Step by Step Solution
- Step 1: Write the proportion equation
66,473,132.40 : 99,719,029.80 = 21,030,188.40 : x - Step 2: Convert to fraction form
66,473,132.40/99,719,029.80 = 21,030,188.40/x - Step 3: Cross multiply
66,473,132.40x = 99,719,029.80 × 21,030,188.40 - Step 4: Simplify right side
66,473,132.40x = 2,097,109,983,759,214 - Step 5: Solve for x
x = 2,097,109,983,759,214/66,473,132.40 - Step 6: Final answer
x = 31,548,234.72
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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.