Finding the Fourth Proportional to 15,725,965.20, 21,708,527.70 and 10,572,316.02
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Solution
The fourth proportional to 15,725,965.20, 21,708,527.70 and 10,572,316.02 is: 14,594,297.54
Step by Step Solution
- Step 1: Write the proportion equation
15,725,965.20 : 21,708,527.70 = 10,572,316.02 : x - Step 2: Convert to fraction form
15,725,965.20/21,708,527.70 = 10,572,316.02/x - Step 3: Cross multiply
15,725,965.20x = 21,708,527.70 × 10,572,316.02 - Step 4: Simplify right side
15,725,965.20x = 229,509,415,173,323.75 - Step 5: Solve for x
x = 229,509,415,173,323.75/15,725,965.20 - Step 6: Final answer
x = 14,594,297.54
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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.