Finding the Fourth Proportional to 613,036,220.80, 919,554,331.20 and 546,523,427.20
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Solution
The fourth proportional to 613,036,220.80, 919,554,331.20 and 546,523,427.20 is: 819,785,140.80
Step by Step Solution
- Step 1: Write the proportion equation
613,036,220.80 : 919,554,331.20 = 546,523,427.20 : x - Step 2: Convert to fraction form
613,036,220.80/919,554,331.20 = 546,523,427.20/x - Step 3: Cross multiply
613,036,220.80x = 919,554,331.20 × 546,523,427.20 - Step 4: Simplify right side
613,036,220.80x = 502,557,984,584,027,968 - Step 5: Solve for x
x = 502,557,984,584,027,968/613,036,220.80 - Step 6: Final answer
x = 819,785,140.80
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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.