Finding the Fourth Proportional to 260,070,910.80, 390,106,366.20 and 173,850,622.80
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Solution
The fourth proportional to 260,070,910.80, 390,106,366.20 and 173,850,622.80 is: 260,775,934.20
Step by Step Solution
- Step 1: Write the proportion equation
260,070,910.80 : 390,106,366.20 = 173,850,622.80 : x - Step 2: Convert to fraction form
260,070,910.80/390,106,366.20 = 173,850,622.80/x - Step 3: Cross multiply
260,070,910.80x = 390,106,366.20 × 173,850,622.80 - Step 4: Simplify right side
260,070,910.80x = 67,820,234,722,114,872 - Step 5: Solve for x
x = 67,820,234,722,114,872/260,070,910.80 - Step 6: Final answer
x = 260,775,934.20
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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.