Finding the Fourth Proportional to 2,991,420,583.11, 4,128,673,019.85 and 1,739,083,852.42
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Solution
The fourth proportional to 2,991,420,583.11, 4,128,673,019.85 and 1,739,083,852.42 is: 2,400,233,728.84
Step by Step Solution
- Step 1: Write the proportion equation
2,991,420,583.11 : 4,128,673,019.85 = 1,739,083,852.42 : x - Step 2: Convert to fraction form
2,991,420,583.11/4,128,673,019.85 = 1,739,083,852.42/x - Step 3: Cross multiply
2,991,420,583.11x = 4,128,673,019.85 × 1,739,083,852.42 - Step 4: Simplify right side
2,991,420,583.11x = 7,180,108,580,732,931,072 - Step 5: Solve for x
x = 7,180,108,580,732,931,072/2,991,420,583.11 - Step 6: Final answer
x = 2,400,233,728.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.