Finding the Fourth Proportional to 1,078,179,625.80, 1,617,269,438.70 and 351,168,337.80
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Solution
The fourth proportional to 1,078,179,625.80, 1,617,269,438.70 and 351,168,337.80 is: 526,752,506.70
Step by Step Solution
- Step 1: Write the proportion equation
1,078,179,625.80 : 1,617,269,438.70 = 351,168,337.80 : x - Step 2: Convert to fraction form
1,078,179,625.80/1,617,269,438.70 = 351,168,337.80/x - Step 3: Cross multiply
1,078,179,625.80x = 1,617,269,438.70 × 351,168,337.80 - Step 4: Simplify right side
1,078,179,625.80x = 567,933,820,563,018,048 - Step 5: Solve for x
x = 567,933,820,563,018,048/1,078,179,625.80 - Step 6: Final answer
x = 526,752,506.70
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.