Finding the Fourth Proportional to 19,658,736.12, 27,128,315.70 and 11,399,147.04
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Solution
The fourth proportional to 19,658,736.12, 27,128,315.70 and 11,399,147.04 is: 15,730,393.74
Step by Step Solution
- Step 1: Write the proportion equation
19,658,736.12 : 27,128,315.70 = 11,399,147.04 : x - Step 2: Convert to fraction form
19,658,736.12/27,128,315.70 = 11,399,147.04/x - Step 3: Cross multiply
19,658,736.12x = 27,128,315.70 × 11,399,147.04 - Step 4: Simplify right side
19,658,736.12x = 309,239,659,611,840.50 - Step 5: Solve for x
x = 309,239,659,611,840.50/19,658,736.12 - Step 6: Final answer
x = 15,730,393.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.