Finding the Fourth Proportional to 2,556,557,006.31, 3,831,445,358.55 and 1,312,937,236.62
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Solution
The fourth proportional to 2,556,557,006.31, 3,831,445,358.55 and 1,312,937,236.62 is: 1,967,664,819.87
Step by Step Solution
- Step 1: Write the proportion equation
2,556,557,006.31 : 3,831,445,358.55 = 1,312,937,236.62 : x - Step 2: Convert to fraction form
2,556,557,006.31/3,831,445,358.55 = 1,312,937,236.62/x - Step 3: Cross multiply
2,556,557,006.31x = 3,831,445,358.55 × 1,312,937,236.62 - Step 4: Simplify right side
2,556,557,006.31x = 5,030,447,281,315,162,112 - Step 5: Solve for x
x = 5,030,447,281,315,162,112/2,556,557,006.31 - Step 6: Final answer
x = 1,967,664,819.87
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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.