Finding the Fourth Proportional to 2,630,256,959.28, 3,945,352,518.09 and 638,315,517.23
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Solution
The fourth proportional to 2,630,256,959.28, 3,945,352,518.09 and 638,315,517.23 is: 957,465,286.55
Step by Step Solution
- Step 1: Write the proportion equation
2,630,256,959.28 : 3,945,352,518.09 = 638,315,517.23 : x - Step 2: Convert to fraction form
2,630,256,959.28/3,945,352,518.09 = 638,315,517.23/x - Step 3: Cross multiply
2,630,256,959.28x = 3,945,352,518.09 × 638,315,517.23 - Step 4: Simplify right side
2,630,256,959.28x = 2,518,379,733,219,574,784 - Step 5: Solve for x
x = 2,518,379,733,219,574,784/2,630,256,959.28 - Step 6: Final answer
x = 957,465,286.55
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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.