Finding the Fourth Proportional to 2,831,527,220.98, 4,247,461,079.69 and 866,397,324.87
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Solution
The fourth proportional to 2,831,527,220.98, 4,247,461,079.69 and 866,397,324.87 is: 1,299,648,080.25
Step by Step Solution
- Step 1: Write the proportion equation
2,831,527,220.98 : 4,247,461,079.69 = 866,397,324.87 : x - Step 2: Convert to fraction form
2,831,527,220.98/4,247,461,079.69 = 866,397,324.87/x - Step 3: Cross multiply
2,831,527,220.98x = 4,247,461,079.69 × 866,397,324.87 - Step 4: Simplify right side
2,831,527,220.98x = 3,679,988,916,921,113,088 - Step 5: Solve for x
x = 3,679,988,916,921,113,088/2,831,527,220.98 - Step 6: Final answer
x = 1,299,648,080.25
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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.