Finding the Fourth Proportional to 19,012,280.10, 28,511,260.40 and 6,878,743.94
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Solution
The fourth proportional to 19,012,280.10, 28,511,260.40 and 6,878,743.94 is: 10,315,525.47
Step by Step Solution
- Step 1: Write the proportion equation
19,012,280.10 : 28,511,260.40 = 6,878,743.94 : x - Step 2: Convert to fraction form
19,012,280.10/28,511,260.40 = 6,878,743.94/x - Step 3: Cross multiply
19,012,280.10x = 28,511,260.40 × 6,878,743.94 - Step 4: Simplify right side
19,012,280.10x = 196,121,659,698,261.97 - Step 5: Solve for x
x = 196,121,659,698,261.97/19,012,280.10 - Step 6: Final answer
x = 10,315,525.47
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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.