Finding the Fourth Proportional to 28,941,400.02, 39,939,599.97 and 15,889,862.10
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Solution
The fourth proportional to 28,941,400.02, 39,939,599.97 and 15,889,862.10 is: 21,928,266.62
Step by Step Solution
- Step 1: Write the proportion equation
28,941,400.02 : 39,939,599.97 = 15,889,862.10 : x - Step 2: Convert to fraction form
28,941,400.02/39,939,599.97 = 15,889,862.10/x - Step 3: Cross multiply
28,941,400.02x = 39,939,599.97 × 15,889,862.10 - Step 4: Simplify right side
28,941,400.02x = 634,634,735,852,464.12 - Step 5: Solve for x
x = 634,634,735,852,464.12/28,941,400.02 - Step 6: Final answer
x = 21,928,266.62
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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.