Finding the Fourth Proportional to 112,970,227.68, 155,409,699.36 and 98,968,528.80
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Solution
The fourth proportional to 112,970,227.68, 155,409,699.36 and 98,968,528.80 is: 136,147,988.92
Step by Step Solution
- Step 1: Write the proportion equation
112,970,227.68 : 155,409,699.36 = 98,968,528.80 : x - Step 2: Convert to fraction form
112,970,227.68/155,409,699.36 = 98,968,528.80/x - Step 3: Cross multiply
112,970,227.68x = 155,409,699.36 × 98,968,528.80 - Step 4: Simplify right side
112,970,227.68x = 15,380,669,306,909,502 - Step 5: Solve for x
x = 15,380,669,306,909,502/112,970,227.68 - Step 6: Final answer
x = 136,147,988.92
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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.