Finding the Fourth Proportional to 130,848,527.68, 180,572,203.20 and 72,113,341.12
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Solution
The fourth proportional to 130,848,527.68, 180,572,203.20 and 72,113,341.12 is: 99,517,091.38
Step by Step Solution
- Step 1: Write the proportion equation
130,848,527.68 : 180,572,203.20 = 72,113,341.12 : x - Step 2: Convert to fraction form
130,848,527.68/180,572,203.20 = 72,113,341.12/x - Step 3: Cross multiply
130,848,527.68x = 180,572,203.20 × 72,113,341.12 - Step 4: Simplify right side
130,848,527.68x = 13,021,664,886,151,556 - Step 5: Solve for x
x = 13,021,664,886,151,556/130,848,527.68 - Step 6: Final answer
x = 99,517,091.38
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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.