Finding the Fourth Proportional to 19,925,986.05, 29,888,979.08 and 18,130,896.45
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Solution
The fourth proportional to 19,925,986.05, 29,888,979.08 and 18,130,896.45 is: 27,196,344.68
Step by Step Solution
- Step 1: Write the proportion equation
19,925,986.05 : 29,888,979.08 = 18,130,896.45 : x - Step 2: Convert to fraction form
19,925,986.05/29,888,979.08 = 18,130,896.45/x - Step 3: Cross multiply
19,925,986.05x = 29,888,979.08 × 18,130,896.45 - Step 4: Simplify right side
19,925,986.05x = 541,913,984,605,041.75 - Step 5: Solve for x
x = 541,913,984,605,041.75/19,925,986.05 - Step 6: Final answer
x = 27,196,344.68
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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.