Finding the Fourth Proportional to 28,332,029.88, 42,493,290.12 and 7,863,828.84
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Solution
The fourth proportional to 28,332,029.88, 42,493,290.12 and 7,863,828.84 is: 11,794,423.55
Step by Step Solution
- Step 1: Write the proportion equation
28,332,029.88 : 42,493,290.12 = 7,863,828.84 : x - Step 2: Convert to fraction form
28,332,029.88/42,493,290.12 = 7,863,828.84/x - Step 3: Cross multiply
28,332,029.88x = 42,493,290.12 × 7,863,828.84 - Step 4: Simplify right side
28,332,029.88x = 334,159,960,352,143.06 - Step 5: Solve for x
x = 334,159,960,352,143.06/28,332,029.88 - Step 6: Final answer
x = 11,794,423.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.