Finding the Fourth Proportional to 28,551,241.92, 39,400,763.84 and 15,498,509.70
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Solution
The fourth proportional to 28,551,241.92, 39,400,763.84 and 15,498,509.70 is: 21,387,970.52
Step by Step Solution
- Step 1: Write the proportion equation
28,551,241.92 : 39,400,763.84 = 15,498,509.70 : x - Step 2: Convert to fraction form
28,551,241.92/39,400,763.84 = 15,498,509.70/x - Step 3: Cross multiply
28,551,241.92x = 39,400,763.84 × 15,498,509.70 - Step 4: Simplify right side
28,551,241.92x = 610,653,120,561,649.25 - Step 5: Solve for x
x = 610,653,120,561,649.25/28,551,241.92 - Step 6: Final answer
x = 21,387,970.52
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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.