Finding the Fourth Proportional to 19,881,297.21, 27,436,353.62 and 11,179,393.71
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Solution
The fourth proportional to 19,881,297.21, 27,436,353.62 and 11,179,393.71 is: 15,427,655.23
Step by Step Solution
- Step 1: Write the proportion equation
19,881,297.21 : 27,436,353.62 = 11,179,393.71 : x - Step 2: Convert to fraction form
19,881,297.21/27,436,353.62 = 11,179,393.71/x - Step 3: Cross multiply
19,881,297.21x = 27,436,353.62 × 11,179,393.71 - Step 4: Simplify right side
19,881,297.21x = 306,721,798,925,980.44 - Step 5: Solve for x
x = 306,721,798,925,980.44/19,881,297.21 - Step 6: Final answer
x = 15,427,655.23
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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.