Finding the Fourth Proportional to 197,407,893,367.63, 272,422,892,847.35 and 112,921,528,951.63
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Solution
The fourth proportional to 197,407,893,367.63, 272,422,892,847.35 and 112,921,528,951.63 is: 155,831,709,953.26
Step by Step Solution
- Step 1: Write the proportion equation
197,407,893,367.63 : 272,422,892,847.35 = 112,921,528,951.63 : x - Step 2: Convert to fraction form
197,407,893,367.63/272,422,892,847.35 = 112,921,528,951.63/x - Step 3: Cross multiply
197,407,893,367.63x = 272,422,892,847.35 × 112,921,528,951.63 - Step 4: Simplify right side
197,407,893,367.63x = 30,762,409,581,748,831,649,792 - Step 5: Solve for x
x = 30,762,409,581,748,831,649,792/197,407,893,367.63 - Step 6: Final answer
x = 155,831,709,953.26
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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.