Finding the Fourth Proportional to 613,467,467.80, 920,201,201.70 and 354,549,412.60
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Solution
The fourth proportional to 613,467,467.80, 920,201,201.70 and 354,549,412.60 is: 531,824,118.90
Step by Step Solution
- Step 1: Write the proportion equation
613,467,467.80 : 920,201,201.70 = 354,549,412.60 : x - Step 2: Convert to fraction form
613,467,467.80/920,201,201.70 = 354,549,412.60/x - Step 3: Cross multiply
613,467,467.80x = 920,201,201.70 × 354,549,412.60 - Step 4: Simplify right side
613,467,467.80x = 326,256,795,536,549,184 - Step 5: Solve for x
x = 326,256,795,536,549,184/613,467,467.80 - Step 6: Final answer
x = 531,824,118.90
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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.