Finding the Fourth Proportional to 135,392,511.69, 203,117,902.47 and 42,017,639.09
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Solution
The fourth proportional to 135,392,511.69, 203,117,902.47 and 42,017,639.09 is: 63,035,500.35
Step by Step Solution
- Step 1: Write the proportion equation
135,392,511.69 : 203,117,902.47 = 42,017,639.09 : x - Step 2: Convert to fraction form
135,392,511.69/203,117,902.47 = 42,017,639.09/x - Step 3: Cross multiply
135,392,511.69x = 203,117,902.47 × 42,017,639.09 - Step 4: Simplify right side
135,392,511.69x = 8,534,534,717,686,690 - Step 5: Solve for x
x = 8,534,534,717,686,690/135,392,511.69 - Step 6: Final answer
x = 63,035,500.35
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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.