Finding the Fourth Proportional to 909,660,652.22, 1,255,331,702.05 and 491,972,937.47
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Solution
The fourth proportional to 909,660,652.22, 1,255,331,702.05 and 491,972,937.47 is: 678,922,654.78
Step by Step Solution
- Step 1: Write the proportion equation
909,660,652.22 : 1,255,331,702.05 = 491,972,937.47 : x - Step 2: Convert to fraction form
909,660,652.22/1,255,331,702.05 = 491,972,937.47/x - Step 3: Cross multiply
909,660,652.22x = 1,255,331,702.05 × 491,972,937.47 - Step 4: Simplify right side
909,660,652.22x = 617,589,224,953,966,720 - Step 5: Solve for x
x = 617,589,224,953,966,720/909,660,652.22 - Step 6: Final answer
x = 678,922,654.78
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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.