Finding the Fourth Proportional to 768,054,415.42, 1,059,801,074.52 and 466,482,794.80
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Solution
The fourth proportional to 768,054,415.42, 1,059,801,074.52 and 466,482,794.80 is: 643,677,006.80
Step by Step Solution
- Step 1: Write the proportion equation
768,054,415.42 : 1,059,801,074.52 = 466,482,794.80 : x - Step 2: Convert to fraction form
768,054,415.42/1,059,801,074.52 = 466,482,794.80/x - Step 3: Cross multiply
768,054,415.42x = 1,059,801,074.52 × 466,482,794.80 - Step 4: Simplify right side
768,054,415.42x = 494,378,967,174,132,672 - Step 5: Solve for x
x = 494,378,967,174,132,672/768,054,415.42 - Step 6: Final answer
x = 643,677,006.80
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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.