Finding the Fourth Proportional to 7,134,567,197.76, 10,703,228,983.20 and 2,712,642,811.20
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Solution
The fourth proportional to 7,134,567,197.76, 10,703,228,983.20 and 2,712,642,811.20 is: 4,069,488,218.85
Step by Step Solution
- Step 1: Write the proportion equation
7,134,567,197.76 : 10,703,228,983.20 = 2,712,642,811.20 : x - Step 2: Convert to fraction form
7,134,567,197.76/10,703,228,983.20 = 2,712,642,811.20/x - Step 3: Cross multiply
7,134,567,197.76x = 10,703,228,983.20 × 2,712,642,811.20 - Step 4: Simplify right side
7,134,567,197.76x = 29,034,037,157,904,965,632 - Step 5: Solve for x
x = 29,034,037,157,904,965,632/7,134,567,197.76 - Step 6: Final answer
x = 4,069,488,218.85
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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.