Finding the Fourth Proportional to 145,933,673.49, 201,382,454.95 and 87,228,704.99
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Solution
The fourth proportional to 145,933,673.49, 201,382,454.95 and 87,228,704.99 is: 120,372,017.87
Step by Step Solution
- Step 1: Write the proportion equation
145,933,673.49 : 201,382,454.95 = 87,228,704.99 : x - Step 2: Convert to fraction form
145,933,673.49/201,382,454.95 = 87,228,704.99/x - Step 3: Cross multiply
145,933,673.49x = 201,382,454.95 × 87,228,704.99 - Step 4: Simplify right side
145,933,673.49x = 17,566,330,753,280,900 - Step 5: Solve for x
x = 17,566,330,753,280,900/145,933,673.49 - Step 6: Final answer
x = 120,372,017.87
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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.