Finding the Fourth Proportional to 201,938,824.68, 278,675,566.16 and 109,119,329.52
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Solution
The fourth proportional to 201,938,824.68, 278,675,566.16 and 109,119,329.52 is: 150,584,668.31
Step by Step Solution
- Step 1: Write the proportion equation
201,938,824.68 : 278,675,566.16 = 109,119,329.52 : x - Step 2: Convert to fraction form
201,938,824.68/278,675,566.16 = 109,119,329.52/x - Step 3: Cross multiply
201,938,824.68x = 278,675,566.16 × 109,119,329.52 - Step 4: Simplify right side
201,938,824.68x = 30,408,890,932,985,604 - Step 5: Solve for x
x = 30,408,890,932,985,604/201,938,824.68 - Step 6: Final answer
x = 150,584,668.31
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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.