Finding the Fourth Proportional to 138,420,400.65, 207,630,600.98 and 138,420,400.65
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Solution
The fourth proportional to 138,420,400.65, 207,630,600.98 and 138,420,400.65 is: 207,630,600.98
Step by Step Solution
- Step 1: Write the proportion equation
138,420,400.65 : 207,630,600.98 = 138,420,400.65 : x - Step 2: Convert to fraction form
138,420,400.65/207,630,600.98 = 138,420,400.65/x - Step 3: Cross multiply
138,420,400.65x = 207,630,600.98 × 138,420,400.65 - Step 4: Simplify right side
138,420,400.65x = 28,740,310,974,159,780 - Step 5: Solve for x
x = 28,740,310,974,159,780/138,420,400.65 - Step 6: Final answer
x = 207,630,600.98
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1.5x scale
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.