Finding the Fourth Proportional to 286,530,304.85, 429,795,457.28 and 198,854,349.65
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Solution
The fourth proportional to 286,530,304.85, 429,795,457.28 and 198,854,349.65 is: 298,281,524.48
Step by Step Solution
- Step 1: Write the proportion equation
286,530,304.85 : 429,795,457.28 = 198,854,349.65 : x - Step 2: Convert to fraction form
286,530,304.85/429,795,457.28 = 198,854,349.65/x - Step 3: Cross multiply
286,530,304.85x = 429,795,457.28 × 198,854,349.65 - Step 4: Simplify right side
286,530,304.85x = 85,466,696,138,944,480 - Step 5: Solve for x
x = 85,466,696,138,944,480/286,530,304.85 - Step 6: Final answer
x = 298,281,524.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.