Finding the Fourth Proportional to 1,156,305,876.18, 1,595,656,140.71 and 654,618,728.08
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Solution
The fourth proportional to 1,156,305,876.18, 1,595,656,140.71 and 654,618,728.08 is: 903,347,820.68
Step by Step Solution
- Step 1: Write the proportion equation
1,156,305,876.18 : 1,595,656,140.71 = 654,618,728.08 : x - Step 2: Convert to fraction form
1,156,305,876.18/1,595,656,140.71 = 654,618,728.08/x - Step 3: Cross multiply
1,156,305,876.18x = 1,595,656,140.71 × 654,618,728.08 - Step 4: Simplify right side
1,156,305,876.18x = 1,044,546,393,284,621,824 - Step 5: Solve for x
x = 1,044,546,393,284,621,824/1,156,305,876.18 - Step 6: Final answer
x = 903,347,820.68
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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.