Finding the Fourth Proportional to 260,776,874.10, 391,165,311.15 and 157,464,743.70
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Solution
The fourth proportional to 260,776,874.10, 391,165,311.15 and 157,464,743.70 is: 236,197,115.55
Step by Step Solution
- Step 1: Write the proportion equation
260,776,874.10 : 391,165,311.15 = 157,464,743.70 : x - Step 2: Convert to fraction form
260,776,874.10/391,165,311.15 = 157,464,743.70/x - Step 3: Cross multiply
260,776,874.10x = 391,165,311.15 × 157,464,743.70 - Step 4: Simplify right side
260,776,874.10x = 61,594,745,464,565,496 - Step 5: Solve for x
x = 61,594,745,464,565,496/260,776,874.10 - Step 6: Final answer
x = 236,197,115.55
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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.