Finding the Fourth Proportional to 659,025,536.41, 909,395,133.53 and 391,055,195.70
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Solution
The fourth proportional to 659,025,536.41, 909,395,133.53 and 391,055,195.70 is: 539,620,503.70
Step by Step Solution
- Step 1: Write the proportion equation
659,025,536.41 : 909,395,133.53 = 391,055,195.70 : x - Step 2: Convert to fraction form
659,025,536.41/909,395,133.53 = 391,055,195.70/x - Step 3: Cross multiply
659,025,536.41x = 909,395,133.53 × 391,055,195.70 - Step 4: Simplify right side
659,025,536.41x = 355,623,691,911,201,728 - Step 5: Solve for x
x = 355,623,691,911,201,728/659,025,536.41 - Step 6: Final answer
x = 539,620,503.70
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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.