Finding the Fourth Proportional to 2,979,317,138.80, 4,468,975,708.20 and 2,652,162,059.20
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Solution
The fourth proportional to 2,979,317,138.80, 4,468,975,708.20 and 2,652,162,059.20 is: 3,978,243,088.80
Step by Step Solution
- Step 1: Write the proportion equation
2,979,317,138.80 : 4,468,975,708.20 = 2,652,162,059.20 : x - Step 2: Convert to fraction form
2,979,317,138.80/4,468,975,708.20 = 2,652,162,059.20/x - Step 3: Cross multiply
2,979,317,138.80x = 4,468,975,708.20 × 2,652,162,059.20 - Step 4: Simplify right side
2,979,317,138.80x = 11,852,447,816,774,488,064 - Step 5: Solve for x
x = 11,852,447,816,774,488,064/2,979,317,138.80 - Step 6: Final answer
x = 3,978,243,088.80
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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.