Finding the Fourth Proportional to 128,007,317.36, 176,650,563.06 and 69,269,975.79
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Solution
The fourth proportional to 128,007,317.36, 176,650,563.06 and 69,269,975.79 is: 95,592,818.28
Step by Step Solution
- Step 1: Write the proportion equation
128,007,317.36 : 176,650,563.06 = 69,269,975.79 : x - Step 2: Convert to fraction form
128,007,317.36/176,650,563.06 = 69,269,975.79/x - Step 3: Cross multiply
128,007,317.36x = 176,650,563.06 × 69,269,975.79 - Step 4: Simplify right side
128,007,317.36x = 12,236,580,226,456,070 - Step 5: Solve for x
x = 12,236,580,226,456,070/128,007,317.36 - Step 6: Final answer
x = 95,592,818.28
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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.