Finding the Fourth Proportional to 7,171,445.80, 9,896,595.06 and 3,952,181.80
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Solution
The fourth proportional to 7,171,445.80, 9,896,595.06 and 3,952,181.80 is: 5,454,010.80
Step by Step Solution
- Step 1: Write the proportion equation
7,171,445.80 : 9,896,595.06 = 3,952,181.80 : x - Step 2: Convert to fraction form
7,171,445.80/9,896,595.06 = 3,952,181.80/x - Step 3: Cross multiply
7,171,445.80x = 9,896,595.06 × 3,952,181.80 - Step 4: Simplify right side
7,171,445.80x = 39,113,142,878,101.91 - Step 5: Solve for x
x = 39,113,142,878,101.91/7,171,445.80 - Step 6: Final answer
x = 5,454,010.80
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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.