Finding the Fourth Proportional to 28,733,601.70, 39,653,210.21 and 15,681,698.28
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Solution
The fourth proportional to 28,733,601.70, 39,653,210.21 and 15,681,698.28 is: 21,641,201.99
Step by Step Solution
- Step 1: Write the proportion equation
28,733,601.70 : 39,653,210.21 = 15,681,698.28 : x - Step 2: Convert to fraction form
28,733,601.70/39,653,210.21 = 15,681,698.28/x - Step 3: Cross multiply
28,733,601.70x = 39,653,210.21 × 15,681,698.28 - Step 4: Simplify right side
28,733,601.70x = 621,829,678,346,635.38 - Step 5: Solve for x
x = 621,829,678,346,635.38/28,733,601.70 - Step 6: Final answer
x = 21,641,201.99
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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.