Finding the Fourth Proportional to 1,241,178,038.09, 1,861,206,791.45 and 355,660,854.17
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Solution
The fourth proportional to 1,241,178,038.09, 1,861,206,791.45 and 355,660,854.17 is: 533,330,736.54
Step by Step Solution
- Step 1: Write the proportion equation
1,241,178,038.09 : 1,861,206,791.45 = 355,660,854.17 : x - Step 2: Convert to fraction form
1,241,178,038.09/1,861,206,791.45 = 355,660,854.17/x - Step 3: Cross multiply
1,241,178,038.09x = 1,861,206,791.45 × 355,660,854.17 - Step 4: Simplify right side
1,241,178,038.09x = 661,958,397,223,027,712 - Step 5: Solve for x
x = 661,958,397,223,027,712/1,241,178,038.09 - Step 6: Final answer
x = 533,330,736.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.