Finding the Fourth Proportional to 127,609,476.18, 176,101,794.54 and 72,605,332.68
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Solution
The fourth proportional to 127,609,476.18, 176,101,794.54 and 72,605,332.68 is: 100,195,767.28
Step by Step Solution
- Step 1: Write the proportion equation
127,609,476.18 : 176,101,794.54 = 72,605,332.68 : x - Step 2: Convert to fraction form
127,609,476.18/176,101,794.54 = 72,605,332.68/x - Step 3: Cross multiply
127,609,476.18x = 176,101,794.54 × 72,605,332.68 - Step 4: Simplify right side
127,609,476.18x = 12,785,929,378,121,708 - Step 5: Solve for x
x = 12,785,929,378,121,708/127,609,476.18 - Step 6: Final answer
x = 100,195,767.28
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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.