Finding the Fourth Proportional to 638,871,480.63, 881,643,231.14 and 345,516,048.63
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Solution
The fourth proportional to 638,871,480.63, 881,643,231.14 and 345,516,048.63 is: 476,812,465.04
Step by Step Solution
- Step 1: Write the proportion equation
638,871,480.63 : 881,643,231.14 = 345,516,048.63 : x - Step 2: Convert to fraction form
638,871,480.63/881,643,231.14 = 345,516,048.63/x - Step 3: Cross multiply
638,871,480.63x = 881,643,231.14 × 345,516,048.63 - Step 4: Simplify right side
638,871,480.63x = 304,621,885,523,150,976 - Step 5: Solve for x
x = 304,621,885,523,150,976/638,871,480.63 - Step 6: Final answer
x = 476,812,465.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.