Finding the Fourth Proportional to 623,752,902.98, 860,785,808.55 and 345,299,076.62
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Solution
The fourth proportional to 623,752,902.98, 860,785,808.55 and 345,299,076.62 is: 476,516,491.45
Step by Step Solution
- Step 1: Write the proportion equation
623,752,902.98 : 860,785,808.55 = 345,299,076.62 : x - Step 2: Convert to fraction form
623,752,902.98/860,785,808.55 = 345,299,076.62/x - Step 3: Cross multiply
623,752,902.98x = 860,785,808.55 × 345,299,076.62 - Step 4: Simplify right side
623,752,902.98x = 297,228,544,859,915,072 - Step 5: Solve for x
x = 297,228,544,859,915,072/623,752,902.98 - Step 6: Final answer
x = 476,516,491.45
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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.