Finding the Fourth Proportional to 861,528,187.88, 1,292,668,168.74 and 301,691,829.49
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Solution
The fourth proportional to 861,528,187.88, 1,292,668,168.74 and 301,691,829.49 is: 452,669,373.14
Step by Step Solution
- Step 1: Write the proportion equation
861,528,187.88 : 1,292,668,168.74 = 301,691,829.49 : x - Step 2: Convert to fraction form
861,528,187.88/1,292,668,168.74 = 301,691,829.49/x - Step 3: Cross multiply
861,528,187.88x = 1,292,668,168.74 × 301,691,829.49 - Step 4: Simplify right side
861,528,187.88x = 389,987,424,747,155,456 - Step 5: Solve for x
x = 389,987,424,747,155,456/861,528,187.88 - Step 6: Final answer
x = 452,669,373.14
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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.