Finding the Fourth Proportional to 87,731,459.92, 121,077,538.80 and 48,573,237.28
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Solution
The fourth proportional to 87,731,459.92, 121,077,538.80 and 48,573,237.28 is: 67,035,565.43
Step by Step Solution
- Step 1: Write the proportion equation
87,731,459.92 : 121,077,538.80 = 48,573,237.28 : x - Step 2: Convert to fraction form
87,731,459.92/121,077,538.80 = 48,573,237.28/x - Step 3: Cross multiply
87,731,459.92x = 121,077,538.80 × 48,573,237.28 - Step 4: Simplify right side
87,731,459.92x = 5,881,128,021,410,806 - Step 5: Solve for x
x = 5,881,128,021,410,806/87,731,459.92 - Step 6: Final answer
x = 67,035,565.43
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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.