Finding the Fourth Proportional to 187,490,130.15, 258,738,449.01 and 103,859,541.75
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Solution
The fourth proportional to 187,490,130.15, 258,738,449.01 and 103,859,541.75 is: 143,327,313.95
Step by Step Solution
- Step 1: Write the proportion equation
187,490,130.15 : 258,738,449.01 = 103,859,541.75 : x - Step 2: Convert to fraction form
187,490,130.15/258,738,449.01 = 103,859,541.75/x - Step 3: Cross multiply
187,490,130.15x = 258,738,449.01 × 103,859,541.75 - Step 4: Simplify right side
187,490,130.15x = 26,872,456,747,284,340 - Step 5: Solve for x
x = 26,872,456,747,284,340/187,490,130.15 - Step 6: Final answer
x = 143,327,313.95
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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.