Finding the Fourth Proportional to 319,272,989.49, 440,513,344.44 and 187,042,902.87
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Solution
The fourth proportional to 319,272,989.49, 440,513,344.44 and 187,042,902.87 is: 258,070,358.00
Step by Step Solution
- Step 1: Write the proportion equation
319,272,989.49 : 440,513,344.44 = 187,042,902.87 : x - Step 2: Convert to fraction form
319,272,989.49/440,513,344.44 = 187,042,902.87/x - Step 3: Cross multiply
319,272,989.49x = 440,513,344.44 × 187,042,902.87 - Step 4: Simplify right side
319,272,989.49x = 82,394,894,697,029,776 - Step 5: Solve for x
x = 82,394,894,697,029,776/319,272,989.49 - Step 6: Final answer
x = 258,070,358.00
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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.