Finding the Fourth Proportional to 2,125,767,656.80, 3,188,651,485.20 and 1,789,046,639.20
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Solution
The fourth proportional to 2,125,767,656.80, 3,188,651,485.20 and 1,789,046,639.20 is: 2,683,569,958.80
Step by Step Solution
- Step 1: Write the proportion equation
2,125,767,656.80 : 3,188,651,485.20 = 1,789,046,639.20 : x - Step 2: Convert to fraction form
2,125,767,656.80/3,188,651,485.20 = 1,789,046,639.20/x - Step 3: Cross multiply
2,125,767,656.80x = 3,188,651,485.20 × 1,789,046,639.20 - Step 4: Simplify right side
2,125,767,656.80x = 5,704,646,223,177,148,416 - Step 5: Solve for x
x = 5,704,646,223,177,148,416/2,125,767,656.80 - Step 6: Final answer
x = 2,683,569,958.80
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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.