Finding the Fourth Proportional to 1,309,411,170.02, 1,964,984,232.18 and 719,613,290.12
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Solution
The fourth proportional to 1,309,411,170.02, 1,964,984,232.18 and 719,613,290.12 is: 1,079,896,674.72
Step by Step Solution
- Step 1: Write the proportion equation
1,309,411,170.02 : 1,964,984,232.18 = 719,613,290.12 : x - Step 2: Convert to fraction form
1,309,411,170.02/1,964,984,232.18 = 719,613,290.12/x - Step 3: Cross multiply
1,309,411,170.02x = 1,964,984,232.18 × 719,613,290.12 - Step 4: Simplify right side
1,309,411,170.02x = 1,414,028,768,343,147,008 - Step 5: Solve for x
x = 1,414,028,768,343,147,008/1,309,411,170.02 - Step 6: Final answer
x = 1,079,896,674.72
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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.