Finding the Fourth Proportional to 19,878,986, 27,433,234.32 and 12,038,358.08
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Solution
The fourth proportional to 19,878,986, 27,433,234.32 and 12,038,358.08 is: 16,613,075.64
Step by Step Solution
- Step 1: Write the proportion equation
19,878,986 : 27,433,234.32 = 12,038,358.08 : x - Step 2: Convert to fraction form
19,878,986/27,433,234.32 = 12,038,358.08/x - Step 3: Cross multiply
19,878,986x = 27,433,234.32 × 12,038,358.08 - Step 4: Simplify right side
19,878,986x = 330,251,098,036,705.31 - Step 5: Solve for x
x = 330,251,098,036,705.31/19,878,986 - Step 6: Final answer
x = 16,613,075.64
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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.