Finding the Fourth Proportional to 1,611,193,742,988.30, 2,223,436,054,388.20 and 879,582,149,535.44
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Solution
The fourth proportional to 1,611,193,742,988.30, 2,223,436,054,388.20 and 879,582,149,535.44 is: 1,213,817,191,498.10
Step by Step Solution
- Step 1: Write the proportion equation
1,611,193,742,988.30 : 2,223,436,054,388.20 = 879,582,149,535.44 : x - Step 2: Convert to fraction form
1,611,193,742,988.30/2,223,436,054,388.20 = 879,582,149,535.44/x - Step 3: Cross multiply
1,611,193,742,988.30x = 2,223,436,054,388.20 × 879,582,149,535.44 - Step 4: Simplify right side
1,611,193,742,988.30x = 1,955,694,664,073,370,459,439,104 - Step 5: Solve for x
x = 1,955,694,664,073,370,459,439,104/1,611,193,742,988.30 - Step 6: Final answer
x = 1,213,817,191,498.10
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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.