Finding the Fourth Proportional to 7,127,587,367.15, 10,691,789,623.33 and 1,887,059,402.13
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Solution
The fourth proportional to 7,127,587,367.15, 10,691,789,623.33 and 1,887,059,402.13 is: 2,830,697,274.55
Step by Step Solution
- Step 1: Write the proportion equation
7,127,587,367.15 : 10,691,789,623.33 = 1,887,059,402.13 : x - Step 2: Convert to fraction form
7,127,587,367.15/10,691,789,623.33 = 1,887,059,402.13/x - Step 3: Cross multiply
7,127,587,367.15x = 10,691,789,623.33 × 1,887,059,402.13 - Step 4: Simplify right side
7,127,587,367.15x = 20,176,042,134,291,415,040 - Step 5: Solve for x
x = 20,176,042,134,291,415,040/7,127,587,367.15 - Step 6: Final answer
x = 2,830,697,274.55
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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.