Finding the Fourth Proportional to 66,440,829.20, 99,661,243.80 and 37,264,718.30
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Solution
The fourth proportional to 66,440,829.20, 99,661,243.80 and 37,264,718.30 is: 55,897,077.45
Step by Step Solution
- Step 1: Write the proportion equation
66,440,829.20 : 99,661,243.80 = 37,264,718.30 : x - Step 2: Convert to fraction form
66,440,829.20/99,661,243.80 = 37,264,718.30/x - Step 3: Cross multiply
66,440,829.20x = 99,661,243.80 × 37,264,718.30 - Step 4: Simplify right side
66,440,829.20x = 3,713,848,175,634,621 - Step 5: Solve for x
x = 3,713,848,175,634,621/66,440,829.20 - Step 6: Final answer
x = 55,897,077.45
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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.