Finding the Fourth Proportional to 118,346,146.69, 163,317,903.72 and 66,135,182.41
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Solution
The fourth proportional to 118,346,146.69, 163,317,903.72 and 66,135,182.41 is: 91,266,675.39
Step by Step Solution
- Step 1: Write the proportion equation
118,346,146.69 : 163,317,903.72 = 66,135,182.41 : x - Step 2: Convert to fraction form
118,346,146.69/163,317,903.72 = 66,135,182.41/x - Step 3: Cross multiply
118,346,146.69x = 163,317,903.72 × 66,135,182.41 - Step 4: Simplify right side
118,346,146.69x = 10,801,059,353,341,016 - Step 5: Solve for x
x = 10,801,059,353,341,016/118,346,146.69 - Step 6: Final answer
x = 91,266,675.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.