Finding the Fourth Proportional to 320,879,387.60, 480,534,103.92 and 289,824,804.08
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Solution
The fourth proportional to 320,879,387.60, 480,534,103.92 and 289,824,804.08 is: 434,028,198.46
Step by Step Solution
- Step 1: Write the proportion equation
320,879,387.60 : 480,534,103.92 = 289,824,804.08 : x - Step 2: Convert to fraction form
320,879,387.60/480,534,103.92 = 289,824,804.08/x - Step 3: Cross multiply
320,879,387.60x = 480,534,103.92 × 289,824,804.08 - Step 4: Simplify right side
320,879,387.60x = 139,270,702,522,372,352 - Step 5: Solve for x
x = 139,270,702,522,372,352/320,879,387.60 - Step 6: Final answer
x = 434,028,198.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.