Finding the Fourth Proportional to 2,199,389,025.20, 3,299,083,537.80 and 745,366,449.20
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Solution
The fourth proportional to 2,199,389,025.20, 3,299,083,537.80 and 745,366,449.20 is: 1,118,049,673.80
Step by Step Solution
- Step 1: Write the proportion equation
2,199,389,025.20 : 3,299,083,537.80 = 745,366,449.20 : x - Step 2: Convert to fraction form
2,199,389,025.20/3,299,083,537.80 = 745,366,449.20/x - Step 3: Cross multiply
2,199,389,025.20x = 3,299,083,537.80 × 745,366,449.20 - Step 4: Simplify right side
2,199,389,025.20x = 2,459,026,182,184,160,256 - Step 5: Solve for x
x = 2,459,026,182,184,160,256/2,199,389,025.20 - Step 6: Final answer
x = 1,118,049,673.80
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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.