Finding the Fourth Proportional to 207,917,634.84, 286,928,603.56 and 115,099,692.72
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Solution
The fourth proportional to 207,917,634.84, 286,928,603.56 and 115,099,692.72 is: 158,838,831.19
Step by Step Solution
- Step 1: Write the proportion equation
207,917,634.84 : 286,928,603.56 = 115,099,692.72 : x - Step 2: Convert to fraction form
207,917,634.84/286,928,603.56 = 115,099,692.72/x - Step 3: Cross multiply
207,917,634.84x = 286,928,603.56 × 115,099,692.72 - Step 4: Simplify right side
207,917,634.84x = 33,025,394,102,334,700 - Step 5: Solve for x
x = 33,025,394,102,334,700/207,917,634.84 - Step 6: Final answer
x = 158,838,831.19
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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.