Finding the Fourth Proportional to 651,505,174.20, 977,257,761.30 and 393,012,271.80
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Solution
The fourth proportional to 651,505,174.20, 977,257,761.30 and 393,012,271.80 is: 589,518,407.70
Step by Step Solution
- Step 1: Write the proportion equation
651,505,174.20 : 977,257,761.30 = 393,012,271.80 : x - Step 2: Convert to fraction form
651,505,174.20/977,257,761.30 = 393,012,271.80/x - Step 3: Cross multiply
651,505,174.20x = 977,257,761.30 × 393,012,271.80 - Step 4: Simplify right side
651,505,174.20x = 384,074,292,902,695,104 - Step 5: Solve for x
x = 384,074,292,902,695,104/651,505,174.20 - Step 6: Final answer
x = 589,518,407.70
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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.