Finding the Fourth Proportional to 1,539,812,489.76, 2,308,796,339.45 and 490,097,268.18
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Solution
The fourth proportional to 1,539,812,489.76, 2,308,796,339.45 and 490,097,268.18 is: 734,852,318.88
Step by Step Solution
- Step 1: Write the proportion equation
1,539,812,489.76 : 2,308,796,339.45 = 490,097,268.18 : x - Step 2: Convert to fraction form
1,539,812,489.76/2,308,796,339.45 = 490,097,268.18/x - Step 3: Cross multiply
1,539,812,489.76x = 2,308,796,339.45 × 490,097,268.18 - Step 4: Simplify right side
1,539,812,489.76x = 1,131,534,778,745,978,624 - Step 5: Solve for x
x = 1,131,534,778,745,978,624/1,539,812,489.76 - Step 6: Final answer
x = 734,852,318.88
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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.