Finding the Fourth Proportional to 316,462,912.20, 474,694,368.30 and 213,150,781.80
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Solution
The fourth proportional to 316,462,912.20, 474,694,368.30 and 213,150,781.80 is: 319,726,172.70
Step by Step Solution
- Step 1: Write the proportion equation
316,462,912.20 : 474,694,368.30 = 213,150,781.80 : x - Step 2: Convert to fraction form
316,462,912.20/474,694,368.30 = 213,150,781.80/x - Step 3: Cross multiply
316,462,912.20x = 474,694,368.30 × 213,150,781.80 - Step 4: Simplify right side
316,462,912.20x = 101,181,475,719,202,144 - Step 5: Solve for x
x = 101,181,475,719,202,144/316,462,912.20 - Step 6: Final answer
x = 319,726,172.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.