Finding the Fourth Proportional to 18,357,731.80, 27,557,811.60 and 9,854,675.80
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Solution
The fourth proportional to 18,357,731.80, 27,557,811.60 and 9,854,675.80 is: 14,793,401.61
Step by Step Solution
- Step 1: Write the proportion equation
18,357,731.80 : 27,557,811.60 = 9,854,675.80 : x - Step 2: Convert to fraction form
18,357,731.80/27,557,811.60 = 9,854,675.80/x - Step 3: Cross multiply
18,357,731.80x = 27,557,811.60 × 9,854,675.80 - Step 4: Simplify right side
18,357,731.80x = 271,573,299,075,479.31 - Step 5: Solve for x
x = 271,573,299,075,479.31/18,357,731.80 - Step 6: Final answer
x = 14,793,401.61
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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.