Finding the Fourth Proportional to 12,438,010.62, 17,164,471.14 and 6,931,264.68
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Solution
The fourth proportional to 12,438,010.62, 17,164,471.14 and 6,931,264.68 is: 9,565,154.44
Step by Step Solution
- Step 1: Write the proportion equation
12,438,010.62 : 17,164,471.14 = 6,931,264.68 : x - Step 2: Convert to fraction form
12,438,010.62/17,164,471.14 = 6,931,264.68/x - Step 3: Cross multiply
12,438,010.62x = 17,164,471.14 × 6,931,264.68 - Step 4: Simplify right side
12,438,010.62x = 118,971,492,563,561.33 - Step 5: Solve for x
x = 118,971,492,563,561.33/12,438,010.62 - Step 6: Final answer
x = 9,565,154.44
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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.