Finding the Fourth Proportional to 10,623,873.36, 15,928,980.68 and 6,976,293.60
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Solution
The fourth proportional to 10,623,873.36, 15,928,980.68 and 6,976,293.60 is: 10,459,955.82
Step by Step Solution
- Step 1: Write the proportion equation
10,623,873.36 : 15,928,980.68 = 6,976,293.60 : x - Step 2: Convert to fraction form
10,623,873.36/15,928,980.68 = 6,976,293.60/x - Step 3: Cross multiply
10,623,873.36x = 15,928,980.68 × 6,976,293.60 - Step 4: Simplify right side
10,623,873.36x = 111,125,245,972,407.64 - Step 5: Solve for x
x = 111,125,245,972,407.64/10,623,873.36 - Step 6: Final answer
x = 10,459,955.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.