Finding the Fourth Proportional to 708,588,745.20, 1,062,883,117.80 and 648,323,335.80
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Solution
The fourth proportional to 708,588,745.20, 1,062,883,117.80 and 648,323,335.80 is: 972,485,003.70
Step by Step Solution
- Step 1: Write the proportion equation
708,588,745.20 : 1,062,883,117.80 = 648,323,335.80 : x - Step 2: Convert to fraction form
708,588,745.20/1,062,883,117.80 = 648,323,335.80/x - Step 3: Cross multiply
708,588,745.20x = 1,062,883,117.80 × 648,323,335.80 - Step 4: Simplify right side
708,588,745.20x = 689,091,928,497,600,256 - Step 5: Solve for x
x = 689,091,928,497,600,256/708,588,745.20 - Step 6: Final answer
x = 972,485,003.70
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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.