Finding the Fourth Proportional to 1,724,831,998.80, 2,587,247,998.20 and 689,180,773.20
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Solution
The fourth proportional to 1,724,831,998.80, 2,587,247,998.20 and 689,180,773.20 is: 1,033,771,159.80
Step by Step Solution
- Step 1: Write the proportion equation
1,724,831,998.80 : 2,587,247,998.20 = 689,180,773.20 : x - Step 2: Convert to fraction form
1,724,831,998.80/2,587,247,998.20 = 689,180,773.20/x - Step 3: Cross multiply
1,724,831,998.80x = 2,587,247,998.20 × 689,180,773.20 - Step 4: Simplify right side
1,724,831,998.80x = 1,783,081,575,859,628,288 - Step 5: Solve for x
x = 1,783,081,575,859,628,288/1,724,831,998.80 - Step 6: Final answer
x = 1,033,771,159.80
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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.