Finding the Fourth Proportional to 154,202,778.41, 212,797,848.94 and 88,122,519.95
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Solution
The fourth proportional to 154,202,778.41, 212,797,848.94 and 88,122,519.95 is: 121,607,943.00
Step by Step Solution
- Step 1: Write the proportion equation
154,202,778.41 : 212,797,848.94 = 88,122,519.95 : x - Step 2: Convert to fraction form
154,202,778.41/212,797,848.94 = 88,122,519.95/x - Step 3: Cross multiply
154,202,778.41x = 212,797,848.94 × 88,122,519.95 - Step 4: Simplify right side
154,202,778.41x = 18,752,282,687,247,940 - Step 5: Solve for x
x = 18,752,282,687,247,940/154,202,778.41 - Step 6: Final answer
x = 121,607,943.00
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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.