Finding the Fourth Proportional to 15,320,352.07, 21,142,080.70 and 8,444,948.95
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Solution
The fourth proportional to 15,320,352.07, 21,142,080.70 and 8,444,948.95 is: 11,654,026.71
Step by Step Solution
- Step 1: Write the proportion equation
15,320,352.07 : 21,142,080.70 = 8,444,948.95 : x - Step 2: Convert to fraction form
15,320,352.07/21,142,080.70 = 8,444,948.95/x - Step 3: Cross multiply
15,320,352.07x = 21,142,080.70 × 8,444,948.95 - Step 4: Simplify right side
15,320,352.07x = 178,543,792,208,280.25 - Step 5: Solve for x
x = 178,543,792,208,280.25/15,320,352.07 - Step 6: Final answer
x = 11,654,026.71
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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.