Finding the Fourth Proportional to 2,486,122,851.36, 3,430,849,870.80 and 1,372,289,155.68
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Solution
The fourth proportional to 2,486,122,851.36, 3,430,849,870.80 and 1,372,289,155.68 is: 1,893,759,220.26
Step by Step Solution
- Step 1: Write the proportion equation
2,486,122,851.36 : 3,430,849,870.80 = 1,372,289,155.68 : x - Step 2: Convert to fraction form
2,486,122,851.36/3,430,849,870.80 = 1,372,289,155.68/x - Step 3: Cross multiply
2,486,122,851.36x = 3,430,849,870.80 × 1,372,289,155.68 - Step 4: Simplify right side
2,486,122,851.36x = 4,708,118,072,464,969,728 - Step 5: Solve for x
x = 4,708,118,072,464,969,728/2,486,122,851.36 - Step 6: Final answer
x = 1,893,759,220.26
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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.