Finding the Fourth Proportional to 351,804,101.63, 485,287,954.23 and 219,415,254.82
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Solution
The fourth proportional to 351,804,101.63, 485,287,954.23 and 219,415,254.82 is: 302,667,250.45
Step by Step Solution
- Step 1: Write the proportion equation
351,804,101.63 : 485,287,954.23 = 219,415,254.82 : x - Step 2: Convert to fraction form
351,804,101.63/485,287,954.23 = 219,415,254.82/x - Step 3: Cross multiply
351,804,101.63x = 485,287,954.23 × 219,415,254.82 - Step 4: Simplify right side
351,804,101.63x = 106,479,580,138,451,952 - Step 5: Solve for x
x = 106,479,580,138,451,952/351,804,101.63 - Step 6: Final answer
x = 302,667,250.45
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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.