Finding the Fourth Proportional to 15,125,020.80, 20,872,777.53 and 8,249,502.84
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Solution
The fourth proportional to 15,125,020.80, 20,872,777.53 and 8,249,502.84 is: 11,384,449.63
Step by Step Solution
- Step 1: Write the proportion equation
15,125,020.80 : 20,872,777.53 = 8,249,502.84 : x - Step 2: Convert to fraction form
15,125,020.80/20,872,777.53 = 8,249,502.84/x - Step 3: Cross multiply
15,125,020.80x = 20,872,777.53 × 8,249,502.84 - Step 4: Simplify right side
15,125,020.80x = 172,190,037,512,423.19 - Step 5: Solve for x
x = 172,190,037,512,423.19/15,125,020.80 - Step 6: Final answer
x = 11,384,449.63
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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.