Finding the Fourth Proportional to 5,422,987.68, 7,484,386.68 and 3,131,144.52
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Solution
The fourth proportional to 5,422,987.68, 7,484,386.68 and 3,131,144.52 is: 4,321,362.64
Step by Step Solution
- Step 1: Write the proportion equation
5,422,987.68 : 7,484,386.68 = 3,131,144.52 : x - Step 2: Convert to fraction form
5,422,987.68/7,484,386.68 = 3,131,144.52/x - Step 3: Cross multiply
5,422,987.68x = 7,484,386.68 × 3,131,144.52 - Step 4: Simplify right side
5,422,987.68x = 23,434,696,338,642.99 - Step 5: Solve for x
x = 23,434,696,338,642.99/5,422,987.68 - Step 6: Final answer
x = 4,321,362.64
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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.