Finding the Fourth Proportional to 2,155,865.16, 2,975,207.58 and 1,511,050.08
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Solution
The fourth proportional to 2,155,865.16, 2,975,207.58 and 1,511,050.08 is: 2,085,328.77
Step by Step Solution
- Step 1: Write the proportion equation
2,155,865.16 : 2,975,207.58 = 1,511,050.08 : x - Step 2: Convert to fraction form
2,155,865.16/2,975,207.58 = 1,511,050.08/x - Step 3: Cross multiply
2,155,865.16x = 2,975,207.58 × 1,511,050.08 - Step 4: Simplify right side
2,155,865.16x = 4,495,687,651,775.61 - Step 5: Solve for x
x = 4,495,687,651,775.61/2,155,865.16 - Step 6: Final answer
x = 2,085,328.77
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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.