Finding the Fourth Proportional to 28,551,244.17, 39,400,766.94 and 15,498,511.95
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Solution
The fourth proportional to 28,551,244.17, 39,400,766.94 and 15,498,511.95 is: 21,387,973.62
Step by Step Solution
- Step 1: Write the proportion equation
28,551,244.17 : 39,400,766.94 = 15,498,511.95 : x - Step 2: Convert to fraction form
28,551,244.17/39,400,766.94 = 15,498,511.95/x - Step 3: Cross multiply
28,551,244.17x = 39,400,766.94 × 15,498,511.95 - Step 4: Simplify right side
28,551,244.17x = 610,653,257,258,754.88 - Step 5: Solve for x
x = 610,653,257,258,754.88/28,551,244.17 - Step 6: Final answer
x = 21,387,973.62
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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.