Finding the Fourth Proportional to 1,420,374,757, 2,130,562,135.50 and 399,168,229
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Solution
The fourth proportional to 1,420,374,757, 2,130,562,135.50 and 399,168,229 is: 598,752,343.50
Step by Step Solution
- Step 1: Write the proportion equation
1,420,374,757 : 2,130,562,135.50 = 399,168,229 : x - Step 2: Convert to fraction form
1,420,374,757/2,130,562,135.50 = 399,168,229/x - Step 3: Cross multiply
1,420,374,757x = 2,130,562,135.50 × 399,168,229 - Step 4: Simplify right side
1,420,374,757x = 850,452,714,401,993,088 - Step 5: Solve for x
x = 850,452,714,401,993,088/1,420,374,757 - Step 6: Final answer
x = 598,752,343.50
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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.