Finding the Fourth Proportional to 2,180,743,220.81, 3,272,066,294.98 and 763,657,438.53
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Solution
The fourth proportional to 2,180,743,220.81, 3,272,066,294.98 and 763,657,438.53 is: 1,145,819,343.45
Step by Step Solution
- Step 1: Write the proportion equation
2,180,743,220.81 : 3,272,066,294.98 = 763,657,438.53 : x - Step 2: Convert to fraction form
2,180,743,220.81/3,272,066,294.98 = 763,657,438.53/x - Step 3: Cross multiply
2,180,743,220.81x = 3,272,066,294.98 × 763,657,438.53 - Step 4: Simplify right side
2,180,743,220.81x = 2,498,737,765,509,220,352 - Step 5: Solve for x
x = 2,498,737,765,509,220,352/2,180,743,220.81 - Step 6: Final answer
x = 1,145,819,343.45
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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.