Finding the Fourth Proportional to 28,843,417.20, 39,804,390.36 and 15,790,460.84
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Solution
The fourth proportional to 28,843,417.20, 39,804,390.36 and 15,790,460.84 is: 21,791,095.79
Step by Step Solution
- Step 1: Write the proportion equation
28,843,417.20 : 39,804,390.36 = 15,790,460.84 : x - Step 2: Convert to fraction form
28,843,417.20/39,804,390.36 = 15,790,460.84/x - Step 3: Cross multiply
28,843,417.20x = 39,804,390.36 × 15,790,460.84 - Step 4: Simplify right side
28,843,417.20x = 628,529,667,239,653.50 - Step 5: Solve for x
x = 628,529,667,239,653.50/28,843,417.20 - Step 6: Final answer
x = 21,791,095.79
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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.