Finding the Fourth Proportional to 1,163,588,772.80, 1,746,233,464.80 and 819,215,004.80
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Solution
The fourth proportional to 1,163,588,772.80, 1,746,233,464.80 and 819,215,004.80 is: 1,229,421,157.79
Step by Step Solution
- Step 1: Write the proportion equation
1,163,588,772.80 : 1,746,233,464.80 = 819,215,004.80 : x - Step 2: Convert to fraction form
1,163,588,772.80/1,746,233,464.80 = 819,215,004.80/x - Step 3: Cross multiply
1,163,588,772.80x = 1,746,233,464.80 × 819,215,004.80 - Step 4: Simplify right side
1,163,588,772.80x = 1,430,540,656,248,052,480 - Step 5: Solve for x
x = 1,430,540,656,248,052,480/1,163,588,772.80 - Step 6: Final answer
x = 1,229,421,157.79
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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.