Finding the Fourth Proportional to 357,912,164.18, 493,911,045.02 and 207,211,175.12
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Solution
The fourth proportional to 357,912,164.18, 493,911,045.02 and 207,211,175.12 is: 285,946,939.75
Step by Step Solution
- Step 1: Write the proportion equation
357,912,164.18 : 493,911,045.02 = 207,211,175.12 : x - Step 2: Convert to fraction form
357,912,164.18/493,911,045.02 = 207,211,175.12/x - Step 3: Cross multiply
357,912,164.18x = 493,911,045.02 × 207,211,175.12 - Step 4: Simplify right side
357,912,164.18x = 102,343,888,043,540,144 - Step 5: Solve for x
x = 102,343,888,043,540,144/357,912,164.18 - Step 6: Final answer
x = 285,946,939.75
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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.