Finding the Fourth Proportional to 90,745,618,617.48, 125,239,934,860.68 and 51,647,672,701.16
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Solution
The fourth proportional to 90,745,618,617.48, 125,239,934,860.68 and 51,647,672,701.16 is: 71,280,038,235.95
Step by Step Solution
- Step 1: Write the proportion equation
90,745,618,617.48 : 125,239,934,860.68 = 51,647,672,701.16 : x - Step 2: Convert to fraction form
90,745,618,617.48/125,239,934,860.68 = 51,647,672,701.16/x - Step 3: Cross multiply
90,745,618,617.48x = 125,239,934,860.68 × 51,647,672,701.16 - Step 4: Simplify right side
90,745,618,617.48x = 6,468,351,164,798,998,675,456 - Step 5: Solve for x
x = 6,468,351,164,798,998,675,456/90,745,618,617.48 - Step 6: Final answer
x = 71,280,038,235.95
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1.5x scale
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.