Finding the Fourth Proportional to 15,303,659.90, 21,118,241.19 and 8,776,952.06
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Solution
The fourth proportional to 15,303,659.90, 21,118,241.19 and 8,776,952.06 is: 12,111,729.59
Step by Step Solution
- Step 1: Write the proportion equation
15,303,659.90 : 21,118,241.19 = 8,776,952.06 : x - Step 2: Convert to fraction form
15,303,659.90/21,118,241.19 = 8,776,952.06/x - Step 3: Cross multiply
15,303,659.90x = 21,118,241.19 × 8,776,952.06 - Step 4: Simplify right side
15,303,659.90x = 185,353,790,516,147.38 - Step 5: Solve for x
x = 185,353,790,516,147.38/15,303,659.90 - Step 6: Final answer
x = 12,111,729.59
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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.