Finding the Fourth Proportional to 154,602,257.88, 213,356,311.20 and 91,011,122.68
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Solution
The fourth proportional to 154,602,257.88, 213,356,311.20 and 91,011,122.68 is: 125,598,407.68
Step by Step Solution
- Step 1: Write the proportion equation
154,602,257.88 : 213,356,311.20 = 91,011,122.68 : x - Step 2: Convert to fraction form
154,602,257.88/213,356,311.20 = 91,011,122.68/x - Step 3: Cross multiply
154,602,257.88x = 213,356,311.20 × 91,011,122.68 - Step 4: Simplify right side
154,602,257.88x = 19,417,797,413,258,156 - Step 5: Solve for x
x = 19,417,797,413,258,156/154,602,257.88 - Step 6: Final answer
x = 125,598,407.68
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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.