Finding the Fourth Proportional to 19,422,019.40, 29,133,029.10 and 6,639,441.80
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Solution
The fourth proportional to 19,422,019.40, 29,133,029.10 and 6,639,441.80 is: 9,959,162.70
Step by Step Solution
- Step 1: Write the proportion equation
19,422,019.40 : 29,133,029.10 = 6,639,441.80 : x - Step 2: Convert to fraction form
19,422,019.40/29,133,029.10 = 6,639,441.80/x - Step 3: Cross multiply
19,422,019.40x = 29,133,029.10 × 6,639,441.80 - Step 4: Simplify right side
19,422,019.40x = 193,427,051,167,156.38 - Step 5: Solve for x
x = 193,427,051,167,156.38/19,422,019.40 - Step 6: Final answer
x = 9,959,162.70
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1.5x scale
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.