Finding the Fourth Proportional to 420,614,982.54, 630,358,509.81 and 327,354,565.68
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Solution
The fourth proportional to 420,614,982.54, 630,358,509.81 and 327,354,565.68 is: 490,592,928.85
Step by Step Solution
- Step 1: Write the proportion equation
420,614,982.54 : 630,358,509.81 = 327,354,565.68 : x - Step 2: Convert to fraction form
420,614,982.54/630,358,509.81 = 327,354,565.68/x - Step 3: Cross multiply
420,614,982.54x = 630,358,509.81 × 327,354,565.68 - Step 4: Simplify right side
420,614,982.54x = 206,350,736,201,544,544 - Step 5: Solve for x
x = 206,350,736,201,544,544/420,614,982.54 - Step 6: Final answer
x = 490,592,928.85
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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.