Finding the Fourth Proportional to 376,080,346.32, 518,965,586.67 and 208,807,962.99
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Solution
The fourth proportional to 376,080,346.32, 518,965,586.67 and 208,807,962.99 is: 288,140,946.67
Step by Step Solution
- Step 1: Write the proportion equation
376,080,346.32 : 518,965,586.67 = 208,807,962.99 : x - Step 2: Convert to fraction form
376,080,346.32/518,965,586.67 = 208,807,962.99/x - Step 3: Cross multiply
376,080,346.32x = 518,965,586.67 × 208,807,962.99 - Step 4: Simplify right side
376,080,346.32x = 108,364,147,014,473,008 - Step 5: Solve for x
x = 108,364,147,014,473,008/376,080,346.32 - Step 6: Final answer
x = 288,140,946.67
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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.