Finding the Fourth Proportional to 385,337,276.25, 531,765,718.65 and 209,125,226.04
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Solution
The fourth proportional to 385,337,276.25, 531,765,718.65 and 209,125,226.04 is: 288,592,962.50
Step by Step Solution
- Step 1: Write the proportion equation
385,337,276.25 : 531,765,718.65 = 209,125,226.04 : x - Step 2: Convert to fraction form
385,337,276.25/531,765,718.65 = 209,125,226.04/x - Step 3: Cross multiply
385,337,276.25x = 531,765,718.65 × 209,125,226.04 - Step 4: Simplify right side
385,337,276.25x = 111,205,626,113,004,288 - Step 5: Solve for x
x = 111,205,626,113,004,288/385,337,276.25 - Step 6: Final answer
x = 288,592,962.50
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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.