Finding the Fourth Proportional to 3,881,507,209.92, 5,820,128,627.04 and 1,912,026,813.12
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Solution
The fourth proportional to 3,881,507,209.92, 5,820,128,627.04 and 1,912,026,813.12 is: 2,866,989,905.95
Step by Step Solution
- Step 1: Write the proportion equation
3,881,507,209.92 : 5,820,128,627.04 = 1,912,026,813.12 : x - Step 2: Convert to fraction form
3,881,507,209.92/5,820,128,627.04 = 1,912,026,813.12/x - Step 3: Cross multiply
3,881,507,209.92x = 5,820,128,627.04 × 1,912,026,813.12 - Step 4: Simplify right side
3,881,507,209.92x = 11,128,241,990,707,771,392 - Step 5: Solve for x
x = 11,128,241,990,707,771,392/3,881,507,209.92 - Step 6: Final answer
x = 2,866,989,905.95
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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.