Finding the Fourth Proportional to 3,517,734,541.40, 5,281,808,621.70 and 1,968,120,819.80
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Solution
The fourth proportional to 3,517,734,541.40, 5,281,808,621.70 and 1,968,120,819.80 is: 2,955,094,363.21
Step by Step Solution
- Step 1: Write the proportion equation
3,517,734,541.40 : 5,281,808,621.70 = 1,968,120,819.80 : x - Step 2: Convert to fraction form
3,517,734,541.40/5,281,808,621.70 = 1,968,120,819.80/x - Step 3: Cross multiply
3,517,734,541.40x = 5,281,808,621.70 × 1,968,120,819.80 - Step 4: Simplify right side
3,517,734,541.40x = 10,395,237,514,566,912,000 - Step 5: Solve for x
x = 10,395,237,514,566,912,000/3,517,734,541.40 - Step 6: Final answer
x = 2,955,094,363.21
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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.