Finding the Fourth Proportional to 99,009,046.20, 136,630,366.74 and 54,953,476.68
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Solution
The fourth proportional to 99,009,046.20, 136,630,366.74 and 54,953,476.68 is: 75,834,622.80
Step by Step Solution
- Step 1: Write the proportion equation
99,009,046.20 : 136,630,366.74 = 54,953,476.68 : x - Step 2: Convert to fraction form
99,009,046.20/136,630,366.74 = 54,953,476.68/x - Step 3: Cross multiply
99,009,046.20x = 136,630,366.74 × 54,953,476.68 - Step 4: Simplify right side
99,009,046.20x = 7,508,313,672,426,438 - Step 5: Solve for x
x = 7,508,313,672,426,438/99,009,046.20 - Step 6: Final answer
x = 75,834,622.80
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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.