Finding the Fourth Proportional to 319,272,938.18, 440,513,273.70 and 187,042,851.60
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Solution
The fourth proportional to 319,272,938.18, 440,513,273.70 and 187,042,851.60 is: 258,070,287.29
Step by Step Solution
- Step 1: Write the proportion equation
319,272,938.18 : 440,513,273.70 = 187,042,851.60 : x - Step 2: Convert to fraction form
319,272,938.18/440,513,273.70 = 187,042,851.60/x - Step 3: Cross multiply
319,272,938.18x = 440,513,273.70 × 187,042,851.60 - Step 4: Simplify right side
319,272,938.18x = 82,394,858,880,499,280 - Step 5: Solve for x
x = 82,394,858,880,499,280/319,272,938.18 - Step 6: Final answer
x = 258,070,287.29
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.