Finding the Fourth Proportional to 13,649,475.30, 18,836,386.10 and 7,537,903.80
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Solution
The fourth proportional to 13,649,475.30, 18,836,386.10 and 7,537,903.80 is: 10,402,368.09
Step by Step Solution
- Step 1: Write the proportion equation
13,649,475.30 : 18,836,386.10 = 7,537,903.80 : x - Step 2: Convert to fraction form
13,649,475.30/18,836,386.10 = 7,537,903.80/x - Step 3: Cross multiply
13,649,475.30x = 18,836,386.10 × 7,537,903.80 - Step 4: Simplify right side
13,649,475.30x = 141,986,866,323,767.66 - Step 5: Solve for x
x = 141,986,866,323,767.66/13,649,475.30 - Step 6: Final answer
x = 10,402,368.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.