Finding the Fourth Proportional to 98,936,639.22, 148,335,421.14 and 43,578,201.72
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Solution
The fourth proportional to 98,936,639.22, 148,335,421.14 and 43,578,201.72 is: 65,336,673.61
Step by Step Solution
- Step 1: Write the proportion equation
98,936,639.22 : 148,335,421.14 = 43,578,201.72 : x - Step 2: Convert to fraction form
98,936,639.22/148,335,421.14 = 43,578,201.72/x - Step 3: Cross multiply
98,936,639.22x = 148,335,421.14 × 43,578,201.72 - Step 4: Simplify right side
98,936,639.22x = 6,464,190,904,660,072 - Step 5: Solve for x
x = 6,464,190,904,660,072/98,936,639.22 - Step 6: Final answer
x = 65,336,673.61
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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.