Finding the Fourth Proportional to 803,940,120.62, 1,109,445,168.61 and 464,823,134.49
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Solution
The fourth proportional to 803,940,120.62, 1,109,445,168.61 and 464,823,134.49 is: 641,460,436.65
Step by Step Solution
- Step 1: Write the proportion equation
803,940,120.62 : 1,109,445,168.61 = 464,823,134.49 : x - Step 2: Convert to fraction form
803,940,120.62/1,109,445,168.61 = 464,823,134.49/x - Step 3: Cross multiply
803,940,120.62x = 1,109,445,168.61 × 464,823,134.49 - Step 4: Simplify right side
803,940,120.62x = 515,695,780,818,385,920 - Step 5: Solve for x
x = 515,695,780,818,385,920/803,940,120.62 - Step 6: Final answer
x = 641,460,436.65
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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.