Finding the Fourth Proportional to 311,518,726.57, 430,028,211.33 and 194,102,068.98
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Solution
The fourth proportional to 311,518,726.57, 430,028,211.33 and 194,102,068.98 is: 267,943,331.88
Step by Step Solution
- Step 1: Write the proportion equation
311,518,726.57 : 430,028,211.33 = 194,102,068.98 : x - Step 2: Convert to fraction form
311,518,726.57/430,028,211.33 = 194,102,068.98/x - Step 3: Cross multiply
311,518,726.57x = 430,028,211.33 × 194,102,068.98 - Step 4: Simplify right side
311,518,726.57x = 83,469,365,538,921,664 - Step 5: Solve for x
x = 83,469,365,538,921,664/311,518,726.57 - Step 6: Final answer
x = 267,943,331.88
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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.