Finding the Fourth Proportional to 4,549,689,124.60, 6,824,533,686.90 and 1,278,138,328.60
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Solution
The fourth proportional to 4,549,689,124.60, 6,824,533,686.90 and 1,278,138,328.60 is: 1,917,207,492.90
Step by Step Solution
- Step 1: Write the proportion equation
4,549,689,124.60 : 6,824,533,686.90 = 1,278,138,328.60 : x - Step 2: Convert to fraction form
4,549,689,124.60/6,824,533,686.90 = 1,278,138,328.60/x - Step 3: Cross multiply
4,549,689,124.60x = 6,824,533,686.90 × 1,278,138,328.60 - Step 4: Simplify right side
4,549,689,124.60x = 8,722,698,080,048,760,832 - Step 5: Solve for x
x = 8,722,698,080,048,760,832/4,549,689,124.60 - Step 6: Final answer
x = 1,917,207,492.90
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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.