Finding the Fourth Proportional to 13,301,556.84, 18,356,232.42 and 7,189,970.76
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Solution
The fourth proportional to 13,301,556.84, 18,356,232.42 and 7,189,970.76 is: 9,922,205.04
Step by Step Solution
- Step 1: Write the proportion equation
13,301,556.84 : 18,356,232.42 = 7,189,970.76 : x - Step 2: Convert to fraction form
13,301,556.84/18,356,232.42 = 7,189,970.76/x - Step 3: Cross multiply
13,301,556.84x = 18,356,232.42 × 7,189,970.76 - Step 4: Simplify right side
13,301,556.84x = 131,980,774,363,564.05 - Step 5: Solve for x
x = 131,980,774,363,564.05/13,301,556.84 - Step 6: Final answer
x = 9,922,205.04
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1.5x scale
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.