Finding the Fourth Proportional to 20,694,567.52, 31,055,137.36 and 13,878,836.70
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Solution
The fourth proportional to 20,694,567.52, 31,055,137.36 and 13,878,836.70 is: 20,827,165.38
Step by Step Solution
- Step 1: Write the proportion equation
20,694,567.52 : 31,055,137.36 = 13,878,836.70 : x - Step 2: Convert to fraction form
20,694,567.52/31,055,137.36 = 13,878,836.70/x - Step 3: Cross multiply
20,694,567.52x = 31,055,137.36 × 13,878,836.70 - Step 4: Simplify right side
20,694,567.52x = 431,009,180,115,509.06 - Step 5: Solve for x
x = 431,009,180,115,509.06/20,694,567.52 - Step 6: Final answer
x = 20,827,165.38
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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.