Finding the Fourth Proportional to 461,154,587.10, 691,176,121.16 and 211,815,774.02
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Solution
The fourth proportional to 461,154,587.10, 691,176,121.16 and 211,815,774.02 is: 317,468,391.68
Step by Step Solution
- Step 1: Write the proportion equation
461,154,587.10 : 691,176,121.16 = 211,815,774.02 : x - Step 2: Convert to fraction form
461,154,587.10/691,176,121.16 = 211,815,774.02/x - Step 3: Cross multiply
461,154,587.10x = 691,176,121.16 × 211,815,774.02 - Step 4: Simplify right side
461,154,587.10x = 146,402,005,083,131,712 - Step 5: Solve for x
x = 146,402,005,083,131,712/461,154,587.10 - Step 6: Final answer
x = 317,468,391.68
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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.