Finding the Fourth Proportional to 481,652,356.20, 722,478,534.30 and 426,169,915.80
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Solution
The fourth proportional to 481,652,356.20, 722,478,534.30 and 426,169,915.80 is: 639,254,873.70
Step by Step Solution
- Step 1: Write the proportion equation
481,652,356.20 : 722,478,534.30 = 426,169,915.80 : x - Step 2: Convert to fraction form
481,652,356.20/722,478,534.30 = 426,169,915.80/x - Step 3: Cross multiply
481,652,356.20x = 722,478,534.30 × 426,169,915.80 - Step 4: Simplify right side
481,652,356.20x = 307,898,616,129,938,432 - Step 5: Solve for x
x = 307,898,616,129,938,432/481,652,356.20 - Step 6: Final answer
x = 639,254,873.70
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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.