Finding the Fourth Proportional to 20,248,889,420.20, 27,943,457,680.74 and 12,110,692,691.02
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Solution
The fourth proportional to 20,248,889,420.20, 27,943,457,680.74 and 12,110,692,691.02 is: 16,712,750,100.67
Step by Step Solution
- Step 1: Write the proportion equation
20,248,889,420.20 : 27,943,457,680.74 = 12,110,692,691.02 : x - Step 2: Convert to fraction form
20,248,889,420.20/27,943,457,680.74 = 12,110,692,691.02/x - Step 3: Cross multiply
20,248,889,420.20x = 27,943,457,680.74 × 12,110,692,691.02 - Step 4: Simplify right side
20,248,889,420.20x = 338,414,628,695,964,647,424 - Step 5: Solve for x
x = 338,414,628,695,964,647,424/20,248,889,420.20 - Step 6: Final answer
x = 16,712,750,100.67
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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.