Finding the Fourth Proportional to 3,833,831,921.80, 5,750,747,882.70 and 3,420,583,400.20
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Solution
The fourth proportional to 3,833,831,921.80, 5,750,747,882.70 and 3,420,583,400.20 is: 5,130,875,100.30
Step by Step Solution
- Step 1: Write the proportion equation
3,833,831,921.80 : 5,750,747,882.70 = 3,420,583,400.20 : x - Step 2: Convert to fraction form
3,833,831,921.80/5,750,747,882.70 = 3,420,583,400.20/x - Step 3: Cross multiply
3,833,831,921.80x = 5,750,747,882.70 × 3,420,583,400.20 - Step 4: Simplify right side
3,833,831,921.80x = 19,670,912,746,298,916,864 - Step 5: Solve for x
x = 19,670,912,746,298,916,864/3,833,831,921.80 - Step 6: Final answer
x = 5,130,875,100.30
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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.