Finding the Fourth Proportional to 660,184,420.20, 990,276,630.30 and 466,474,175.70
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Solution
The fourth proportional to 660,184,420.20, 990,276,630.30 and 466,474,175.70 is: 699,711,263.55
Step by Step Solution
- Step 1: Write the proportion equation
660,184,420.20 : 990,276,630.30 = 466,474,175.70 : x - Step 2: Convert to fraction form
660,184,420.20/990,276,630.30 = 466,474,175.70/x - Step 3: Cross multiply
660,184,420.20x = 990,276,630.30 × 466,474,175.70 - Step 4: Simplify right side
660,184,420.20x = 461,938,474,834,166,080 - Step 5: Solve for x
x = 461,938,474,834,166,080/660,184,420.20 - Step 6: Final answer
x = 699,711,263.55
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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.