Finding the Fourth Proportional to 1,374,984,291.68, 1,897,524,155.68 and 772,261,129.44
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Solution
The fourth proportional to 1,374,984,291.68, 1,897,524,155.68 and 772,261,129.44 is: 1,065,746,100.86
Step by Step Solution
- Step 1: Write the proportion equation
1,374,984,291.68 : 1,897,524,155.68 = 772,261,129.44 : x - Step 2: Convert to fraction form
1,374,984,291.68/1,897,524,155.68 = 772,261,129.44/x - Step 3: Cross multiply
1,374,984,291.68x = 1,897,524,155.68 × 772,261,129.44 - Step 4: Simplify right side
1,374,984,291.68x = 1,465,384,147,605,119,232 - Step 5: Solve for x
x = 1,465,384,147,605,119,232/1,374,984,291.68 - Step 6: Final answer
x = 1,065,746,100.86
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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.