Finding the Fourth Proportional to 579,416,670.30, 869,125,005.45 and 307,318,878.30
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Solution
The fourth proportional to 579,416,670.30, 869,125,005.45 and 307,318,878.30 is: 460,978,317.45
Step by Step Solution
- Step 1: Write the proportion equation
579,416,670.30 : 869,125,005.45 = 307,318,878.30 : x - Step 2: Convert to fraction form
579,416,670.30/869,125,005.45 = 307,318,878.30/x - Step 3: Cross multiply
579,416,670.30x = 869,125,005.45 × 307,318,878.30 - Step 4: Simplify right side
579,416,670.30x = 267,098,521,777,375,424 - Step 5: Solve for x
x = 267,098,521,777,375,424/579,416,670.30 - Step 6: Final answer
x = 460,978,317.45
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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.