Finding the Fourth Proportional to 2,972,601,209.12, 4,458,800,827.58 and 761,832,630.68
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Solution
The fourth proportional to 2,972,601,209.12, 4,458,800,827.58 and 761,832,630.68 is: 1,142,723,064.81
Step by Step Solution
- Step 1: Write the proportion equation
2,972,601,209.12 : 4,458,800,827.58 = 761,832,630.68 : x - Step 2: Convert to fraction form
2,972,601,209.12/4,458,800,827.58 = 761,832,630.68/x - Step 3: Cross multiply
2,972,601,209.12x = 4,458,800,827.58 × 761,832,630.68 - Step 4: Simplify right side
2,972,601,209.12x = 3,396,859,964,153,432,064 - Step 5: Solve for x
x = 3,396,859,964,153,432,064/2,972,601,209.12 - Step 6: Final answer
x = 1,142,723,064.81
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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.