Finding the Fourth Proportional to 708,588,745.20, 1,062,883,117.80 and 644,018,663.70
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Solution
The fourth proportional to 708,588,745.20, 1,062,883,117.80 and 644,018,663.70 is: 966,027,995.55
Step by Step Solution
- Step 1: Write the proportion equation
708,588,745.20 : 1,062,883,117.80 = 644,018,663.70 : x - Step 2: Convert to fraction form
708,588,745.20/1,062,883,117.80 = 644,018,663.70/x - Step 3: Cross multiply
708,588,745.20x = 1,062,883,117.80 × 644,018,663.70 - Step 4: Simplify right side
708,588,745.20x = 684,516,565,194,845,696 - Step 5: Solve for x
x = 684,516,565,194,845,696/708,588,745.20 - Step 6: Final answer
x = 966,027,995.55
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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.