Finding the Fourth Proportional to 664,000,986.30, 996,001,479.45 and 465,986,069.70
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Solution
The fourth proportional to 664,000,986.30, 996,001,479.45 and 465,986,069.70 is: 698,979,104.55
Step by Step Solution
- Step 1: Write the proportion equation
664,000,986.30 : 996,001,479.45 = 465,986,069.70 : x - Step 2: Convert to fraction form
664,000,986.30/996,001,479.45 = 465,986,069.70/x - Step 3: Cross multiply
664,000,986.30x = 996,001,479.45 × 465,986,069.70 - Step 4: Simplify right side
664,000,986.30x = 464,122,814,824,290,816 - Step 5: Solve for x
x = 464,122,814,824,290,816/664,000,986.30 - Step 6: Final answer
x = 698,979,104.55
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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.