Finding the Fourth Proportional to 19,422,578.40, 29,137,366.80 and 8,064,175.20
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Solution
The fourth proportional to 19,422,578.40, 29,137,366.80 and 8,064,175.20 is: 12,097,715.65
Step by Step Solution
- Step 1: Write the proportion equation
19,422,578.40 : 29,137,366.80 = 8,064,175.20 : x - Step 2: Convert to fraction form
19,422,578.40/29,137,366.80 = 8,064,175.20/x - Step 3: Cross multiply
19,422,578.40x = 29,137,366.80 × 8,064,175.20 - Step 4: Simplify right side
19,422,578.40x = 234,968,830,741,863.38 - Step 5: Solve for x
x = 234,968,830,741,863.38/19,422,578.40 - Step 6: Final answer
x = 12,097,715.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.