Finding the Fourth Proportional to 147,512,567.20, 221,268,850.80 and 79,488,119.20
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Solution
The fourth proportional to 147,512,567.20, 221,268,850.80 and 79,488,119.20 is: 119,232,178.80
Step by Step Solution
- Step 1: Write the proportion equation
147,512,567.20 : 221,268,850.80 = 79,488,119.20 : x - Step 2: Convert to fraction form
147,512,567.20/221,268,850.80 = 79,488,119.20/x - Step 3: Cross multiply
147,512,567.20x = 221,268,850.80 × 79,488,119.20 - Step 4: Simplify right side
147,512,567.20x = 17,588,244,787,637,416 - Step 5: Solve for x
x = 17,588,244,787,637,416/147,512,567.20 - Step 6: Final answer
x = 119,232,178.80
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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.