Finding the Fourth Proportional to 20,595,861,823,946, 28,403,197,730,121 and 15,031,372,334,078
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Solution
The fourth proportional to 20,595,861,823,946, 28,403,197,730,121 and 15,031,372,334,078 is: 20,729,360,305,937.89
Step by Step Solution
- Step 1: Write the proportion equation
20,595,861,823,946 : 28,403,197,730,121 = 15,031,372,334,078 : x - Step 2: Convert to fraction form
20,595,861,823,946/28,403,197,730,121 = 15,031,372,334,078/x - Step 3: Cross multiply
20,595,861,823,946x = 28,403,197,730,121 × 15,031,372,334,078 - Step 4: Simplify right side
20,595,861,823,946x = 426,939,040,559,887,849,399,255,040 - Step 5: Solve for x
x = 426,939,040,559,887,849,399,255,040/20,595,861,823,946 - Step 6: Final answer
x = 20,729,360,305,937.89
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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.