Finding the Fourth Proportional to 118,346,040.81, 163,317,758.07 and 66,135,076.61
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Solution
The fourth proportional to 118,346,040.81, 163,317,758.07 and 66,135,076.61 is: 91,266,529.64
Step by Step Solution
- Step 1: Write the proportion equation
118,346,040.81 : 163,317,758.07 = 66,135,076.61 : x - Step 2: Convert to fraction form
118,346,040.81/163,317,758.07 = 66,135,076.61/x - Step 3: Cross multiply
118,346,040.81x = 163,317,758.07 × 66,135,076.61 - Step 4: Simplify right side
118,346,040.81x = 10,801,032,440,916,306 - Step 5: Solve for x
x = 10,801,032,440,916,306/118,346,040.81 - Step 6: Final answer
x = 91,266,529.64
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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.