Finding the Fourth Proportional to 630,211,328.70, 946,290,202.65 and 343,556,864.70
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Solution
The fourth proportional to 630,211,328.70, 946,290,202.65 and 343,556,864.70 is: 515,865,837.88
Step by Step Solution
- Step 1: Write the proportion equation
630,211,328.70 : 946,290,202.65 = 343,556,864.70 : x - Step 2: Convert to fraction form
630,211,328.70/946,290,202.65 = 343,556,864.70/x - Step 3: Cross multiply
630,211,328.70x = 946,290,202.65 × 343,556,864.70 - Step 4: Simplify right side
630,211,328.70x = 325,104,495,118,761,600 - Step 5: Solve for x
x = 325,104,495,118,761,600/630,211,328.70 - Step 6: Final answer
x = 515,865,837.88
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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.