Finding the Fourth Proportional to 136,810,917.93, 188,799,248.76 and 74,087,124.03
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Solution
The fourth proportional to 136,810,917.93, 188,799,248.76 and 74,087,124.03 is: 102,240,329.73
Step by Step Solution
- Step 1: Write the proportion equation
136,810,917.93 : 188,799,248.76 = 74,087,124.03 : x - Step 2: Convert to fraction form
136,810,917.93/188,799,248.76 = 74,087,124.03/x - Step 3: Cross multiply
136,810,917.93x = 188,799,248.76 × 74,087,124.03 - Step 4: Simplify right side
136,810,917.93x = 13,987,593,359,652,944 - Step 5: Solve for x
x = 13,987,593,359,652,944/136,810,917.93 - Step 6: Final answer
x = 102,240,329.73
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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.