Finding the Fourth Proportional to 28,480,974.57, 42,721,461.99 and 6,915,431.09
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Solution
The fourth proportional to 28,480,974.57, 42,721,461.99 and 6,915,431.09 is: 10,373,146.67
Step by Step Solution
- Step 1: Write the proportion equation
28,480,974.57 : 42,721,461.99 = 6,915,431.09 : x - Step 2: Convert to fraction form
28,480,974.57/42,721,461.99 = 6,915,431.09/x - Step 3: Cross multiply
28,480,974.57x = 42,721,461.99 × 6,915,431.09 - Step 4: Simplify right side
28,480,974.57x = 295,437,326,562,702.94 - Step 5: Solve for x
x = 295,437,326,562,702.94/28,480,974.57 - Step 6: Final answer
x = 10,373,146.67
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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.