Finding the Fourth Proportional to 2,239,915,543.08, 3,090,621,986.44 and 1,287,112,178.56
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Solution
The fourth proportional to 2,239,915,543.08, 3,090,621,986.44 and 1,287,112,178.56 is: 1,775,949,638.08
Step by Step Solution
- Step 1: Write the proportion equation
2,239,915,543.08 : 3,090,621,986.44 = 1,287,112,178.56 : x - Step 2: Convert to fraction form
2,239,915,543.08/3,090,621,986.44 = 1,287,112,178.56/x - Step 3: Cross multiply
2,239,915,543.08x = 3,090,621,986.44 × 1,287,112,178.56 - Step 4: Simplify right side
2,239,915,543.08x = 3,977,977,198,072,223,232 - Step 5: Solve for x
x = 3,977,977,198,072,223,232/2,239,915,543.08 - Step 6: Final answer
x = 1,775,949,638.08
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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.