Finding the Fourth Proportional to 331,330,585.90, 496,995,878.85 and 239,497,581.10
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Solution
The fourth proportional to 331,330,585.90, 496,995,878.85 and 239,497,581.10 is: 359,246,371.65
Step by Step Solution
- Step 1: Write the proportion equation
331,330,585.90 : 496,995,878.85 = 239,497,581.10 : x - Step 2: Convert to fraction form
331,330,585.90/496,995,878.85 = 239,497,581.10/x - Step 3: Cross multiply
331,330,585.90x = 496,995,878.85 × 239,497,581.10 - Step 4: Simplify right side
331,330,585.90x = 119,029,310,801,243,648 - Step 5: Solve for x
x = 119,029,310,801,243,648/331,330,585.90 - Step 6: Final answer
x = 359,246,371.65
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1.5x scale
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.