Finding the Fourth Proportional to 8,628,176,120.55, 12,930,823,021.55 and 4,430,959,378.71
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Solution
The fourth proportional to 8,628,176,120.55, 12,930,823,021.55 and 4,430,959,378.71 is: 6,640,563,514.38
Step by Step Solution
- Step 1: Write the proportion equation
8,628,176,120.55 : 12,930,823,021.55 = 4,430,959,378.71 : x - Step 2: Convert to fraction form
8,628,176,120.55/12,930,823,021.55 = 4,430,959,378.71/x - Step 3: Cross multiply
8,628,176,120.55x = 12,930,823,021.55 × 4,430,959,378.71 - Step 4: Simplify right side
8,628,176,120.55x = 57,295,951,541,753,995,264 - Step 5: Solve for x
x = 57,295,951,541,753,995,264/8,628,176,120.55 - Step 6: Final answer
x = 6,640,563,514.38
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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.