Finding the Fourth Proportional to 839,808,683.10, 1,259,713,024.65 and 805,796,459.10
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Solution
The fourth proportional to 839,808,683.10, 1,259,713,024.65 and 805,796,459.10 is: 1,208,694,688.65
Step by Step Solution
- Step 1: Write the proportion equation
839,808,683.10 : 1,259,713,024.65 = 805,796,459.10 : x - Step 2: Convert to fraction form
839,808,683.10/1,259,713,024.65 = 805,796,459.10/x - Step 3: Cross multiply
839,808,683.10x = 1,259,713,024.65 × 805,796,459.10 - Step 4: Simplify right side
839,808,683.10x = 1,015,072,294,745,121,152 - Step 5: Solve for x
x = 1,015,072,294,745,121,152/839,808,683.10 - Step 6: Final answer
x = 1,208,694,688.65
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Similar ratio
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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.