Finding the Fourth Proportional to 1,759,009,949.07, 2,427,424,340.39 and 955,230,420.66
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Solution
The fourth proportional to 1,759,009,949.07, 2,427,424,340.39 and 955,230,420.66 is: 1,318,212,881.63
Step by Step Solution
- Step 1: Write the proportion equation
1,759,009,949.07 : 2,427,424,340.39 = 955,230,420.66 : x - Step 2: Convert to fraction form
1,759,009,949.07/2,427,424,340.39 = 955,230,420.66/x - Step 3: Cross multiply
1,759,009,949.07x = 2,427,424,340.39 × 955,230,420.66 - Step 4: Simplify right side
1,759,009,949.07x = 2,318,749,573,786,286,592 - Step 5: Solve for x
x = 2,318,749,573,786,286,592/1,759,009,949.07 - Step 6: Final answer
x = 1,318,212,881.63
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1.5x scale
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.