Finding the Fourth Proportional to 19,975,509.12, 27,566,331.36 and 11,713,889.76
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Solution
The fourth proportional to 19,975,509.12, 27,566,331.36 and 11,713,889.76 is: 16,165,243.38
Step by Step Solution
- Step 1: Write the proportion equation
19,975,509.12 : 27,566,331.36 = 11,713,889.76 : x - Step 2: Convert to fraction form
19,975,509.12/27,566,331.36 = 11,713,889.76/x - Step 3: Cross multiply
19,975,509.12x = 27,566,331.36 × 11,713,889.76 - Step 4: Simplify right side
19,975,509.12x = 322,908,966,638,670.88 - Step 5: Solve for x
x = 322,908,966,638,670.88/19,975,509.12 - Step 6: Final answer
x = 16,165,243.38
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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.