Finding the Fourth Proportional to 189,696,587.58, 261,701,130.71 and 126,992,887.70
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Solution
The fourth proportional to 189,696,587.58, 261,701,130.71 and 126,992,887.70 is: 175,196,521.60
Step by Step Solution
- Step 1: Write the proportion equation
189,696,587.58 : 261,701,130.71 = 126,992,887.70 : x - Step 2: Convert to fraction form
189,696,587.58/261,701,130.71 = 126,992,887.70/x - Step 3: Cross multiply
189,696,587.58x = 261,701,130.71 × 126,992,887.70 - Step 4: Simplify right side
189,696,587.58x = 33,234,182,303,720,812 - Step 5: Solve for x
x = 33,234,182,303,720,812/189,696,587.58 - Step 6: Final answer
x = 175,196,521.60
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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.