Finding the Fourth Proportional to 260,605,542.44, 390,821,509.92 and 105,119,191.40
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Solution
The fourth proportional to 260,605,542.44, 390,821,509.92 and 105,119,191.40 is: 157,643,773.50
Step by Step Solution
- Step 1: Write the proportion equation
260,605,542.44 : 390,821,509.92 = 105,119,191.40 : x - Step 2: Convert to fraction form
260,605,542.44/390,821,509.92 = 105,119,191.40/x - Step 3: Cross multiply
260,605,542.44x = 390,821,509.92 × 105,119,191.40 - Step 4: Simplify right side
260,605,542.44x = 41,082,841,104,517,480 - Step 5: Solve for x
x = 41,082,841,104,517,480/260,605,542.44 - Step 6: Final answer
x = 157,643,773.50
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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.