Finding the Fourth Proportional to 1,535,078,791.26, 2,118,408,716.97 and 830,230,752.42
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Solution
The fourth proportional to 1,535,078,791.26, 2,118,408,716.97 and 830,230,752.42 is: 1,145,718,430.24
Step by Step Solution
- Step 1: Write the proportion equation
1,535,078,791.26 : 2,118,408,716.97 = 830,230,752.42 : x - Step 2: Convert to fraction form
1,535,078,791.26/2,118,408,716.97 = 830,230,752.42/x - Step 3: Cross multiply
1,535,078,791.26x = 2,118,408,716.97 × 830,230,752.42 - Step 4: Simplify right side
1,535,078,791.26x = 1,758,768,063,023,089,920 - Step 5: Solve for x
x = 1,758,768,063,023,089,920/1,535,078,791.26 - Step 6: Final answer
x = 1,145,718,430.24
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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.