Finding the Fourth Proportional to 15,077,219.41, 20,806,547.03 and 8,201,685.07
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Solution
The fourth proportional to 15,077,219.41, 20,806,547.03 and 8,201,685.07 is: 11,318,316.82
Step by Step Solution
- Step 1: Write the proportion equation
15,077,219.41 : 20,806,547.03 = 8,201,685.07 : x - Step 2: Convert to fraction form
15,077,219.41/20,806,547.03 = 8,201,685.07/x - Step 3: Cross multiply
15,077,219.41x = 20,806,547.03 × 8,201,685.07 - Step 4: Simplify right side
15,077,219.41x = 170,648,746,050,675.31 - Step 5: Solve for x
x = 170,648,746,050,675.31/15,077,219.41 - Step 6: Final answer
x = 11,318,316.82
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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.