Finding the Fourth Proportional to 28,021,671.97, 38,669,030.44 and 16,426,957.95
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Solution
The fourth proportional to 28,021,671.97, 38,669,030.44 and 16,426,957.95 is: 22,668,687.92
Step by Step Solution
- Step 1: Write the proportion equation
28,021,671.97 : 38,669,030.44 = 16,426,957.95 : x - Step 2: Convert to fraction form
28,021,671.97/38,669,030.44 = 16,426,957.95/x - Step 3: Cross multiply
28,021,671.97x = 38,669,030.44 × 16,426,957.95 - Step 4: Simplify right side
28,021,671.97x = 635,214,536,964,082.62 - Step 5: Solve for x
x = 635,214,536,964,082.62/28,021,671.97 - Step 6: Final answer
x = 22,668,687.92
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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.