Finding the Fourth Proportional to 13,516,757.99, 18,653,215.58 and 7,321,804.70
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Solution
The fourth proportional to 13,516,757.99, 18,653,215.58 and 7,321,804.70 is: 10,104,139.00
Step by Step Solution
- Step 1: Write the proportion equation
13,516,757.99 : 18,653,215.58 = 7,321,804.70 : x - Step 2: Convert to fraction form
13,516,757.99/18,653,215.58 = 7,321,804.70/x - Step 3: Cross multiply
13,516,757.99x = 18,653,215.58 × 7,321,804.70 - Step 4: Simplify right side
13,516,757.99x = 136,575,201,477,498.84 - Step 5: Solve for x
x = 136,575,201,477,498.84/13,516,757.99 - Step 6: Final answer
x = 10,104,139.00
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1.5x scale
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.