Finding the Fourth Proportional to 2,556,331,477.60, 3,834,497,216.40 and 1,316,585,912.80
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Solution
The fourth proportional to 2,556,331,477.60, 3,834,497,216.40 and 1,316,585,912.80 is: 1,974,878,869.20
Step by Step Solution
- Step 1: Write the proportion equation
2,556,331,477.60 : 3,834,497,216.40 = 1,316,585,912.80 : x - Step 2: Convert to fraction form
2,556,331,477.60/3,834,497,216.40 = 1,316,585,912.80/x - Step 3: Cross multiply
2,556,331,477.60x = 3,834,497,216.40 × 1,316,585,912.80 - Step 4: Simplify right side
2,556,331,477.60x = 5,048,445,017,783,053,312 - Step 5: Solve for x
x = 5,048,445,017,783,053,312/2,556,331,477.60 - Step 6: Final answer
x = 1,974,878,869.20
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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.