Finding the Fourth Proportional to 1,839,831,128.40, 2,759,746,692.60 and 547,366,616.40
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Solution
The fourth proportional to 1,839,831,128.40, 2,759,746,692.60 and 547,366,616.40 is: 821,049,924.60
Step by Step Solution
- Step 1: Write the proportion equation
1,839,831,128.40 : 2,759,746,692.60 = 547,366,616.40 : x - Step 2: Convert to fraction form
1,839,831,128.40/2,759,746,692.60 = 547,366,616.40/x - Step 3: Cross multiply
1,839,831,128.40x = 2,759,746,692.60 × 547,366,616.40 - Step 4: Simplify right side
1,839,831,128.40x = 1,510,593,209,249,552,896 - Step 5: Solve for x
x = 1,510,593,209,249,552,896/1,839,831,128.40 - Step 6: Final answer
x = 821,049,924.60
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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.