Finding the Fourth Proportional to 808,380,824.80, 1,212,571,237.20 and 726,751,487.20
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Solution
The fourth proportional to 808,380,824.80, 1,212,571,237.20 and 726,751,487.20 is: 1,090,127,230.80
Step by Step Solution
- Step 1: Write the proportion equation
808,380,824.80 : 1,212,571,237.20 = 726,751,487.20 : x - Step 2: Convert to fraction form
808,380,824.80/1,212,571,237.20 = 726,751,487.20/x - Step 3: Cross multiply
808,380,824.80x = 1,212,571,237.20 × 726,751,487.20 - Step 4: Simplify right side
808,380,824.80x = 881,237,949,971,044,096 - Step 5: Solve for x
x = 881,237,949,971,044,096/808,380,824.80 - Step 6: Final answer
x = 1,090,127,230.80
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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.