Finding the Fourth Proportional to 357,926,578.92, 493,933,996.98 and 201,293,638.92
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Solution
The fourth proportional to 357,926,578.92, 493,933,996.98 and 201,293,638.92 is: 277,782,588.65
Step by Step Solution
- Step 1: Write the proportion equation
357,926,578.92 : 493,933,996.98 = 201,293,638.92 : x - Step 2: Convert to fraction form
357,926,578.92/493,933,996.98 = 201,293,638.92/x - Step 3: Cross multiply
357,926,578.92x = 493,933,996.98 × 201,293,638.92 - Step 4: Simplify right side
357,926,578.92x = 99,425,771,638,404,480 - Step 5: Solve for x
x = 99,425,771,638,404,480/357,926,578.92 - Step 6: Final answer
x = 277,782,588.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.