Finding the Fourth Proportional to 85,920,580.62, 118,270,936.35 and 74,888,160.30
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Solution
The fourth proportional to 85,920,580.62, 118,270,936.35 and 74,888,160.30 is: 103,084,648.36
Step by Step Solution
- Step 1: Write the proportion equation
85,920,580.62 : 118,270,936.35 = 74,888,160.30 : x - Step 2: Convert to fraction form
85,920,580.62/118,270,936.35 = 74,888,160.30/x - Step 3: Cross multiply
85,920,580.62x = 118,270,936.35 × 74,888,160.30 - Step 4: Simplify right side
85,920,580.62x = 8,857,092,840,209,896 - Step 5: Solve for x
x = 8,857,092,840,209,896/85,920,580.62 - Step 6: Final answer
x = 103,084,648.36
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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.